Properties of the Number 25999

Twenty-Five Thousand Nine Hundred Ninety-Nine

Basics

Value: 25998 → 25999 → 26000

Parity: odd

Prime: Yes

Previous Prime: 25997

Next Prime: 26003

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 25999

Divisors: 1, 25999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010110001111

Octal: 62617

Duodecimal: 13067

Hexadecimal: 658f

Square: 675948001

Square Root: 161.24205406778964

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

Expansion of g.f. 1/((1-2·x)*(1-5·x)). A16127

Triangle read by rows, S₃(n, k) where S_m(n, k) are the Stirling-Frobenius subset numbers of order m; n >= 0, k >= 0. A225468

Smaller member of a pair (p,q) of cousin primes such that p and q are in different centuries. A160440

Primes having only {2, 5, 9} as digits. A385786

Septic artiads: primes p congruent to 1 mod 14 for which all solutions of the congruence x³ + x² - 2x - 1 == 0 (mod p) are 7th power residues. A270800

Number of subsets of {1..n} containing all of their own first differences. A364671

Primes related to the strictly increasing subsequence of A053666. A230041

Primes containing 999 as a substring. A167292

a(n)=60·sum(1<=i<=j<=k<=n,i·j²/k). A88943

Primes which are the sum of three distinct positive cubes in two or more distinct ways. A180088