Properties of the Number -55721

Fifty-Five Thousand Seven Hundred Twenty-One

Basics

Value: -55722 → -55721 → -55720

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 55721

Divisors: 1, 55721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101100110101001

Octal: -154651

Duodecimal: -282B5

Hexadecimal: -d9a9

Square: 3104829841

Square Root: 236.05296015936761

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

Primes p such that A001175(p) = (p-1)/7. A308792

Primes of the form 16·m² + 25 for m=1,2,3,... A87857

Primes of the form 16·m² + 25, m=1,3,5,... A87856

Primes that are the sum of some number of consecutive prime squares. A376916

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 94. A31682