56756875 has 20 divisors (see below), whose sum is σ = 81061552. Its totient is φ = 38916000.

The previous prime is 56756867. The next prime is 56756891. The reversal of 56756875 is 57865765.

It is not a de Polignac number, because 56756875 - 2³ = 56756867 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2112 + ... + 10861.

Almost surely, 2^56756875 is an apocalyptic number.

56756875 is a deficient number, since it is larger than the sum of its proper divisors (24304677).

56756875 is an equidigital number, since it uses as much as digits as its factorization.

56756875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13000 (or 12985 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 49.

The square root of 56756875 is about 7533.7158826173. The cubic root of 56756875 is about 384.3021597273.

The spelling of 56756875 in words is "fifty-six million, seven hundred fifty-six thousand, eight hundred seventy-five".