56577568211 has 4 divisors (see below), whose sum is σ = 57645069552. Its totient is φ = 55510066872.

The previous prime is 56577568169. The next prime is 56577568219. The reversal of 56577568211 is 11286577565.

56577568211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11286577565 = 5 ⋅2257315513.

It is a cyclic number.

It is not a de Polignac number, because 56577568211 - 2¹⁸ = 56577306067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 1067501287 = 56577568211 / (5 + 6 + 5 + 7 + 7 + 5 + 6 + 8 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56577568219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533750591 + ... + 533750696.

It is an arithmetic number, because the mean of its divisors is an integer number (14411267388).

Almost surely, 2^56577568211 is an apocalyptic number.

56577568211 is a deficient number, since it is larger than the sum of its proper divisors (1067501341).

56577568211 is a wasteful number, since it uses less digits than its factorization.

56577568211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067501340.

The product of its digits is 3528000, while the sum is 53.

The spelling of 56577568211 in words is "fifty-six billion, five hundred seventy-seven million, five hundred sixty-eight thousand, two hundred eleven".