55715 has 8 divisors (see below), whose sum is σ = 73008. Its totient is φ = 40480.

The previous prime is 55711. The next prime is 55717. The reversal of 55715 is 51755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55715 - 2² = 55711 is a prime.

It is a super-2 number, since 2×55715² = 6208322450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452 + ... + 561.

It is an arithmetic number, because the mean of its divisors is an integer number (9126).

2⁵⁵⁷¹⁵ is an apocalyptic number.

55715 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55715 is a deficient number, since it is larger than the sum of its proper divisors (17293).

55715 is a wasteful number, since it uses less digits than its factorization.

55715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its digits is 875, while the sum is 23.

The square root of 55715 is about 236.0402508048. The cubic root of 55715 is about 38.1936102175.

The spelling of 55715 in words is "fifty-five thousand, seven hundred fifteen".