56577220579 has 4 divisors (see below), whose sum is σ = 61720604280. Its totient is φ = 51433836880.

The previous prime is 56577220541. The next prime is 56577220621. The reversal of 56577220579 is 97502277565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56577220579 - 2¹³ = 56577212387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56577220529) 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, 2571691834 + ... + 2571691855.

It is an arithmetic number, because the mean of its divisors is an integer number (15430151070).

Almost surely, 2^56577220579 is an apocalyptic number.

56577220579 is a deficient number, since it is larger than the sum of its proper divisors (5143383701).

56577220579 is a wasteful number, since it uses less digits than its factorization.

56577220579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143383700.

The product of its (nonzero) digits is 9261000, while the sum is 55.

The spelling of 56577220579 in words is "fifty-six billion, five hundred seventy-seven million, two hundred twenty thousand, five hundred seventy-nine".