Properties of the Number 25562

Twenty-Five Thousand Five Hundred Sixty-Two

Basics

Value: 25561 → 25562 → 25563

Parity: even

Prime: No

Previous Prime: 25561

Next Prime: 25577

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 12781

Divisors: 1, 2, 12781, 25562

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001111011010

Octal: 61732

Duodecimal: 12962

Hexadecimal: 63da

Square: 653415844

Square Root: 159.88120589988054

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

Cube analog to Keith numbers. A274770

Least b > p_n² such that [p₁²,p₂²,...,p_n²] in base b is prime, where p_j denotes the j-th prime. A224197

(Round(c^prime(n)) - 1)/prime(n), where c is the heptanacci constant (A118428). A239566

a(1) = 1; for n >= 2, a(n) is the earliest occurrence k of the next distinct pair {x(k), y(k)}, where x(k) and y(k) denote the count of zero digits in A355318(k) and A355317(k), respectively. A355539

Number of lower triangles of a 5 X 5 0..n array with each element differing from all of its horizontal and vertical neighbors by one. A195001

a(n) = prime(nⁿ) - nⁿ. A141103

a(n) = n!/LCM{1, C(n-1,1), C(n-2,2), ..., C(n-[ n/2 ],[ n/2 ])}. A25562

Number of nX3 0..2 arrays avoiding the pattern z-1 z-1 z in any row, column or nw-to-se diagonal. A206729