56576317640 has 32 divisors (see below), whose sum is σ = 127311912000. Its totient is φ = 22627825344.

The previous prime is 56576317639. The next prime is 56576317643. The reversal of 56576317640 is 4671367565.

It is not an unprimeable number, because it can be changed into a prime (56576317643) 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, 273551 + ... + 433569.

It is an arithmetic number, because the mean of its divisors is an integer number (3978497250).

Almost surely, 2^56576317640 is an apocalyptic number.

It is an amenable number.

56576317640 is an abundant number, since it is smaller than the sum of its proper divisors (70735594360).

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

56576317640 is a wasteful number, since it uses less digits than its factorization.

56576317640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168869 (or 168865 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 56576317640 in words is "fifty-six billion, five hundred seventy-six million, three hundred seventeen thousand, six hundred forty".