56505715 has 32 divisors (see below), whose sum is σ = 84234240. Its totient is φ = 35510400.

The previous prime is 56505689. The next prime is 56505719. The reversal of 56505715 is 51750565.

It is not a de Polignac number, because 56505715 - 2²⁵ = 22951283 is a prime.

It is a super-2 number, since 2×56505715² = 6385791655322450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56505719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19245 + ... + 21985.

It is an arithmetic number, because the mean of its divisors is an integer number (2632320).

Almost surely, 2^56505715 is an apocalyptic number.

56505715 is a deficient number, since it is larger than the sum of its proper divisors (27728525).

56505715 is a wasteful number, since it uses less digits than its factorization.

56505715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803.

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 56505715 is about 7517.0283357188. The cubic root of 56505715 is about 383.7344513713.

The spelling of 56505715 in words is "fifty-six million, five hundred five thousand, seven hundred fifteen".