56509763211 has 16 divisors (see below), whose sum is σ = 91328910720. Its totient is φ = 34248341160.

The previous prime is 56509763209. The next prime is 56509763227. The reversal of 56509763211 is 11236790565.

56509763211 is a `hidden beast` number, since 5 + 6 + 5 + 0 + 9 + 7 + 632 + 1 + 1 = 666.

56509763211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56509763211 - 2¹ = 56509763209 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (56509761211) 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, 95133985 + ... + 95134578.

It is an arithmetic number, because the mean of its divisors is an integer number (5708056920).

Almost surely, 2^56509763211 is an apocalyptic number.

56509763211 is a deficient number, since it is larger than the sum of its proper divisors (34819147509).

56509763211 is a wasteful number, since it uses less digits than its factorization.

56509763211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190268583 (or 190268577 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 56509763211 in words is "fifty-six billion, five hundred nine million, seven hundred sixty-three thousand, two hundred eleven".