Properties of the Number 55217

Fifty-Five Thousand Two Hundred Seventeen

Basics

Value: 55216 → 55217 → 55218

Parity: odd

Prime: Yes

Previous Prime: 55213

Next Prime: 55219

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 55217

Divisors: 1, 55217

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101011110110001

Octal: 153661

Duodecimal: 27B55

Hexadecimal: d7b1

Square: 3048917089

Square Root: 234.98297810692586

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 equal to an octagonal number plus 1. A285792

Numerators of continued fraction convergents to sqrt(622). A42194

Lesser of twin primes of (29n + 1, 29n + 3). A248620

a(n) = A175369(n²). A175370

Numbers that are a prime factor of a Carmichael number divisible by 3, listed in the order in which they appear in the prime factorizations of such Carmichael numbers. A216911

Interlopers in sexy prime quadruples. A358322

Lesser of twin balanced primes (A090403). A96694

Binomial transform of A135416. A138035

a(n) = A175369(n³). A175371

Numbers n with property that n==5 (mod 12) and 2^m-1=1 (mod m) where m=(2·n-1)*n. A188063