56756866 has 16 divisors (see below), whose sum is σ = 86295456. Its totient is φ = 27994176.

The previous prime is 56756827. The next prime is 56756867. The reversal of 56756866 is 66865765.

It is not an unprimeable number, because it can be changed into a prime (56756867) 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, 71725 + ... + 72511.

It is an arithmetic number, because the mean of its divisors is an integer number (5393466).

Almost surely, 2^56756866 is an apocalyptic number.

56756866 is a deficient number, since it is larger than the sum of its proper divisors (29538590).

56756866 is a wasteful number, since it uses less digits than its factorization.

56756866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233.

The product of its digits is 1814400, while the sum is 49.

The square root of 56756866 is about 7533.7152853025. The cubic root of 56756866 is about 384.3021394142.

The spelling of 56756866 in words is "fifty-six million, seven hundred fifty-six thousand, eight hundred sixty-six".