56936053521 has 24 divisors (see below), whose sum is σ = 85298129280. Its totient is φ = 37952384112.

The previous prime is 56936053487. The next prime is 56936053561. The reversal of 56936053521 is 12535063965.

56936053521 is a `hidden beast` number, since 5 + 6 + 9 + 3 + 605 + 35 + 2 + 1 = 666.

It is not a de Polignac number, because 56936053521 - 2⁶ = 56936053457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56936053561) 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 23 ways as a sum of consecutive naturals, for example, 3351976 + ... + 3368918.

It is an arithmetic number, because the mean of its divisors is an integer number (3554088720).

Almost surely, 2^56936053521 is an apocalyptic number.

It is an amenable number.

56936053521 is a deficient number, since it is larger than the sum of its proper divisors (28362075759).

56936053521 is a wasteful number, since it uses less digits than its factorization.

56936053521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30787 (or 30775 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 45.

The spelling of 56936053521 in words is "fifty-six billion, nine hundred thirty-six million, fifty-three thousand, five hundred twenty-one".