56504439511 has 32 divisors (see below), whose sum is σ = 64510387200. Its totient is φ = 49061738880.

The previous prime is 56504439421. The next prime is 56504439517. The reversal of 56504439511 is 11593440565.

It is a cyclic number.

It is not a de Polignac number, because 56504439511 - 2¹⁵ = 56504406743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56504439517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23434896 + ... + 23437306.

It is an arithmetic number, because the mean of its divisors is an integer number (2015949600).

Almost surely, 2^56504439511 is an apocalyptic number.

56504439511 is a deficient number, since it is larger than the sum of its proper divisors (8005947689).

56504439511 is a wasteful number, since it uses less digits than its factorization.

56504439511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 56504439511 in words is "fifty-six billion, five hundred four million, four hundred thirty-nine thousand, five hundred eleven".