Properties of the Number 25801

Twenty-Five Thousand Eight Hundred One

Basics

Value: 25800 → 25801 → 25802

Parity: odd

Prime: Yes

Previous Prime: 25799

Next Prime: 25819

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 25801

Divisors: 1, 25801

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010011001001

Octal: 62311

Duodecimal: 12B21

Hexadecimal: 64c9

Square: 665691601

Square Root: 160.6268968759591

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

Ordered hypotenuses of primitive Pythagorean triangles having legs that add up to a square. A88319

Primes p whose reciprocal has period (p-1)/10. A56215

Least prime in A031936 (lesser of 18-twins) whose distance to the next 18-twin is 2·n. A52358

Primes that are palindromic in base 12. A29979

Primes of the form f(k) = 9·k⁶ - 804·k⁵ + 29836·k⁴ - 588615·k³ + 6509950·k² - 38263500·k + 93363947 for values of k >= 0. A117624

Primes of form prime(1) + ... + prime(k) + 1. A53845

Primes p such that p-2 and q are primes, where q is concatenation of binary representations of p and p-2: q = p·2^L + p-2, where L is the length of binary representation of p-2: L=A070939(p-2). A232237

Prime numbers congruent to 49 or 121 modulo 240 representable by x² + 960·y². A325090

Primes of the form 14·k² + 26·k + 13. A176617

Prime numbers whose central digit equals the sum of the other digits. A235119