56756911 has 2 divisors, whose sum is σ = 56756912. Its totient is φ = 56756910.

The previous prime is 56756899. The next prime is 56756941. The reversal of 56756911 is 11965765.

56756911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56756911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56756941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28378455 + 28378456.

It is an arithmetic number, because the mean of its divisors is an integer number (28378456).

Almost surely, 2^56756911 is an apocalyptic number.

56756911 is a deficient number, since it is larger than the sum of its proper divisors (1).

56756911 is an equidigital number, since it uses as much as digits as its factorization.

56756911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 40.

The square root of 56756911 is about 7533.7182718761. The cubic root of 56756911 is about 384.3022409795.

The spelling of 56756911 in words is "fifty-six million, seven hundred fifty-six thousand, nine hundred eleven".