56757615072 has 24 divisors (see below), whose sum is σ = 148988739816. Its totient is φ = 18919204992.

The previous prime is 56757615067. The next prime is 56757615073. The reversal of 56757615072 is 27051675765.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×56757615072² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56757615073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295612483 + ... + 295612674.

It is an arithmetic number, because the mean of its divisors is an integer number (6207864159).

Almost surely, 2^56757615072 is an apocalyptic number.

It is an amenable number.

56757615072 is an abundant number, since it is smaller than the sum of its proper divisors (92231124744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56757615072 is a wasteful number, since it uses less digits than its factorization.

56757615072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591225170 (or 591225162 counting only the distinct ones).

The product of its (nonzero) digits is 3087000, while the sum is 51.

The spelling of 56757615072 in words is "fifty-six billion, seven hundred fifty-seven million, six hundred fifteen thousand, seventy-two".