Properties of the Number 25509

Twenty-Five Thousand Five Hundred Nine

Basics

Value: 25508 → 25509 → 25510

Parity: odd

Prime: No

Previous Prime: 25471

Next Prime: 25523

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 11 × 773

Divisors: 1, 3, 11, 33, 773, 2319, 8503, 25509

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110001110100101

Octal: 61645

Duodecimal: 12919

Hexadecimal: 63a5

Square: 650709081

Square Root: 159.71537183377185

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Rectangular table where column k equals row sums of matrix power A078121^k, read by antidiagonals. A125790

Column 4 of table A125790; also equals row sums of matrix power A078121⁴. A125794

Numbers n such that n is a substring of its square in base 5 (written in base 10). A18829

A diagonal of table A125790: a(n) = A125790(n+1,n). A125798

G.f. A(x) equals the limit of the composition of functions (x+xⁿ) in reverse order; let F₁(x) = x, F_n+1(x) = F_n(x) + F_n(x)ⁿ⁺¹, then A(x) = limit F_n(x): A(x) = ...o x+xⁿ o ... o x+x³ o x+x² o x. A119471

a(n) = n·prime(prime(n)). A80697

Number of n X 2 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 2,0,3,4,1 for x=0,1,2,3,4. A196204

Number of partitions of 2ⁿ into powers of 2 less than or equal to 32. A210774

Reversion of x-x²-x³-2·x⁴. A191242

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 633", based on the 5-celled von Neumann neighborhood. A273301