Properties of the Number 25455

Twenty-Five Thousand Four Hundred Fifty-Five

Basics

Value: 25454 → 25455 → 25456

Parity: odd

Prime: No

Previous Prime: 25453

Next Prime: 25457

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 1697

Divisors: 1, 3, 5, 15, 1697, 5091, 8485, 25455

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001101101111

Octal: 61557

Duodecimal: 12893

Hexadecimal: 636f

Square: 647957025

Square Root: 159.54623154433952

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

Integers of the form 8k+7 that can be written as a sum of four distinct squares of the form m, m+2, m+4, m+5, where m == 1 (mod 4). A243579

Coefficient of q¹ in ν(n), where ν(0)=1, ν(1)=b and, for n>=2, ν(n)=b*ν(n-1)+λ*(1+q+q²+...+q^n-2)*ν(n-2) with (b,λ)=(3,1). A74361

Triangular array P*(2·I - P²)^-1, where P is Pascal's triangle A007318 and I is the identity matrix. A162313

Number of Young tableaux with n=i·j cells and type i·j matrices with i>=j. A67231

Sum( S(n,k) * M(k-1), k=1..n), where S(n,k) = Stirling numbers of the second kind, M(n) = Motzkin numbers, A001006. A69657

a(n) is the number of partitions of n into 2 positive cubes. A25455

Number of (n+1)X(n+1) -7..7 symmetric matrices with every 2X2 subblock having sum zero and two or three distinct values. A211444