Properties of the Number 25456

Twenty-Five Thousand Four Hundred Fifty-Six

Basics

Value: 25455 → 25456 → 25457

Parity: even

Prime: No

Previous Prime: 25453

Next Prime: 25457

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁴ × 37 × 43

Divisors: 1, 2, 4, 8, 16, 37, 43, 74, 86, 148

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001101110000

Octal: 61560

Duodecimal: 12894

Hexadecimal: 6370

Square: 648007936

Square Root: 159.54936540143305

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

Total number of line segments between points visible to each other in a square n X n lattice. A141255

Primitive terms of A388034. A388035

Numbers k such that e(k) > 1 and k == e(k) (mod λ(k)), where e(k) = A051903(k) is the maximal exponent in prime factorization of k. A327295

"DHK" (bracelet, identity, unlabeled) transform of 1,1,1,1,... A32245

A triangle sequence related to the Eulerian numbers of the second kind: t(n,m) = ∑_i=0..m(-1)^m-i*binomial(n-i-1, m-i)*Stirling2(n+i+1, i+1). A156363

Sequence with a (4,-8) Somos-4 Hankel transform. A178076

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1)*b(n), where a(0) = 1, a(1) = 4, b(0) = 2, b(1) = 3, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences. A296274

a(n) = ∑_{-n<i<n, -n<j<n, gcd{i,j}=2} (n-|i|)*(n-|j|)/8. A331773

Molecular topological indices of the cycle graphs. A192797

Numbers n such that n²+k-1 is the sum of two nonzero squares in exactly k ways for all k = 1, 2, 3. A273341