Properties of the Number 25555

Twenty-Five Thousand Five Hundred Fifty-Five

Basics

Value: 25554 → 25555 → 25556

Parity: odd

Prime: No

Previous Prime: 25541

Next Prime: 25561

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 19 × 269

Divisors: 1, 5, 19, 95, 269, 1345, 5111, 25555

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001111010011

Octal: 61723

Duodecimal: 12957

Hexadecimal: 63d3

Square: 653058025

Square Root: 159.85931314752983

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

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 1 0 vertically. A208108

Records in A068189 (smallest number k such that n = product of nonzero digits of k, or 0 if no such k exists). A96867

Numbers having four 5's in base 10. A43512

Expansion of 1/(1-x⁵-x⁶-x⁷-x⁸-x⁹-x¹⁰-x¹¹-x¹²-x¹³). A17844

a(n) = (n+1)*Fibonacci(n+2) + 3. A123194

Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 1 0 vertically. A208107

Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 1 0 vertically. A208109

Number of collinear point 9-tuples in an n X n X n cubical grid. A178267

S-perfect numbers. A118372

Least common multiple (or LCM) of first n positive triangular numbers (A000217). A25555