Properties of the Number 55555

Fifty-Five Thousand Five Hundred Fifty-Five

Basics

Value: 55554 → 55555 → 55556

Parity: odd

Prime: No

Previous Prime: 55547

Next Prime: 55579

Digit Sum: 25

Digital Root: 7

Palindrome: Yes

Factorization: 5 × 41 × 271

Divisors: 1, 5, 41, 205, 271, 1355, 11111, 55555

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101100100000011

Octal: 154403

Duodecimal: 28197

Hexadecimal: d903

Square: 3086358025

Square Root: 235.70108188126758

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

Repdigit numbers, or numbers whose digits are all equal. A10785

a(n) = 5*(10ⁿ - 1)/9. A2279

Concatenate n n times. A461

a(n) is the least positive integer in base 10 containing n fives that is divisible by n. A112900

Numbers whose decimal expansion contains only 0's and 5's. A169964

Numbers which have only digits 5 and 6 in base 10. A256291

Any digit d in the sequence says: "I am part of an integer in which you'll find d digits d". A108571

a(n) = floor(10⁶/n). A33426

n times (n 1's): a(n) = n*(10ⁿ - 1)/9. A53422

Replace each 1 in decimal expansion of n with 1 1's, each 2 with 2 2's, etc. (0 vanishes). A48376