56536647377 has 16 divisors (see below), whose sum is σ = 66016691712. Its totient is φ = 47408343360.

The previous prime is 56536647317. The next prime is 56536647473. The reversal of 56536647377 is 77374663565.

56536647377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-56536647377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56536647317) 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, 747263 + ... + 819435.

It is an arithmetic number, because the mean of its divisors is an integer number (4126043232).

Almost surely, 2^56536647377 is an apocalyptic number.

It is an amenable number.

56536647377 is a deficient number, since it is larger than the sum of its proper divisors (9480044335).

56536647377 is a wasteful number, since it uses less digits than its factorization.

56536647377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74608.

The product of its digits is 66679200, while the sum is 59.

The spelling of 56536647377 in words is "fifty-six billion, five hundred thirty-six million, six hundred forty-seven thousand, three hundred seventy-seven".