Properties of the Number 55575

Fifty-Five Thousand Five Hundred Seventy-Five

Basics

Value: 55574 → 55575 → 55576

Parity: odd

Prime: No

Previous Prime: 55547

Next Prime: 55579

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 ² × 13 × 19

Divisors: 1, 3, 5, 9, 13, 15, 19, 25, 39, 45

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101100100010111

Octal: 154427

Duodecimal: 281B3

Hexadecimal: d917

Square: 3088580625

Square Root: 235.74350468252567

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

4-dimensional pyramidal numbers: a(n) = (3·n+1)*binomial(n+2, 3)/4. Also Stirling2(n+2, n). A1296

Octagonal pyramidal numbers: a(n) = n*(n+1)*(2·n-1)/2. A2414

Partial sum of usigma is divisible by n, where usigma(n) = A034448(n) and summatory-usigma(n) = A064609(n). A64611

Numbers that are the sum of four third powers in nine or more ways. A345146

Numbers that are the sum of four third powers in ten or more ways. A345155

Least sum of 4 distinct positive cubes in exactly n ways. A25421

Numbers k with digits 5 and 7 only. A284380

One of the two successive approximations up to 2ⁿ for 2-adic integer sqrt(17). This is the 3 (mod 4) case. A341539

a(n) = n*(n+1)*(n²+1)/2. A71237

Numbers k such that 11^k == -1 (mod k-1). A55694