Properties of the Number 25849

Twenty-Five Thousand Eight Hundred Forty-Nine

Basics

Value: 25848 → 25849 → 25850

Parity: odd

Prime: Yes

Previous Prime: 25847

Next Prime: 25867

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 25849

Divisors: 1, 25849

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010011111001

Octal: 62371

Duodecimal: 12B61

Hexadecimal: 64f9

Square: 668170801

Square Root: 160.77624202599088

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

a(1)=2; a(n) for n>1 is the smallest prime number > a(n-1) such that the concatenation of all previous terms is also prime. A80155

Primes in A161190. A161191

Primes p such that prime(p)² - 2 = prime(q) for some prime q. A261354

Primes of the form abs(103·n² - 4707·n + 50383) in order of increasing nonnegative n. A267252

Let p(k) = k-th prime; sequence gives primes q of the form q = k·p(k) + 1 for some k. A96064

Primes of the form 11·n² + 55·n + 43. A292578

Prime numbers congruent to 1 or 169 modulo 240 representable by both x² + 150·y² and x² + 960·y². A325087

a(n) = 2·prime(n)² - prime(n+1)². A64051

Primes p such that p³-2 and p²-2 are both primes. A242979

a(n) = floor(10000·log₂(n)). A4268