56756915 has 16 divisors (see below), whose sum is σ = 72182880. Its totient is φ = 42766080.

The previous prime is 56756911. The next prime is 56756941. The reversal of 56756915 is 51965765.

It is not a de Polignac number, because 56756915 - 2² = 56756911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56756911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1172 + ... + 10718.

It is an arithmetic number, because the mean of its divisors is an integer number (4511430).

Almost surely, 2^56756915 is an apocalyptic number.

56756915 is a deficient number, since it is larger than the sum of its proper divisors (15425965).

56756915 is a wasteful number, since it uses less digits than its factorization.

56756915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9622.

The product of its digits is 283500, while the sum is 44.

The square root of 56756915 is about 7533.7185373493. The cubic root of 56756915 is about 384.3022500076.

The spelling of 56756915 in words is "fifty-six million, seven hundred fifty-six thousand, nine hundred fifteen".