Properties of the Number 25560

Twenty-Five Thousand Five Hundred Sixty

Basics

Value: 25559 → 25560 → 25561

Parity: even

Prime: No

Previous Prime: 25541

Next Prime: 25561

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 5 × 71

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001111011000

Octal: 61730

Duodecimal: 12960

Hexadecimal: 63d8

Square: 653313600

Square Root: 159.87495113369073

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

Numbers that have exactly seven prime factors counted with multiplicity (A046308) whose digit reversal is different and also has 7 prime factors (with multiplicity). A109027

Smallest number k such that prime(n) is the n-th divisor of k. A221647

Number of 4 element sets of distinct integer sided rectangles that fill an n X n square. A387171

First differences of A069475, successive differences of (n+1)⁶-n⁶. A69476

a(n) = 16·n² - n. A157446

Triangle read by rows: T(n,m) (n>=0, 1 <= m <= n+1) = number of unlabeled rigid interval posets with n non-maximal and m maximal elements. A193344

Number of irreducible endless self-avoiding walks of length n for the square lattice. A334324

Indices of prime Fibonacci numbers, minus 1. A69744

a(n) = 1600·n² - 40. A158773

Numbers n for which the terms of the multiplicative sequence {n²/A049417(n)} are integers. A185288