56591565233 has 16 divisors (see below), whose sum is σ = 66391994880. Its totient is φ = 47236939776.

The previous prime is 56591565223. The next prime is 56591565241. The reversal of 56591565233 is 33256519565.

56591565233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 56591565233 - 2⁶ = 56591565169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56591565203) 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, 660560 + ... + 741297.

It is an arithmetic number, because the mean of its divisors is an integer number (4149499680).

Almost surely, 2^56591565233 is an apocalyptic number.

It is an amenable number.

56591565233 is a deficient number, since it is larger than the sum of its proper divisors (9800429647).

56591565233 is a wasteful number, since it uses less digits than its factorization.

56591565233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402016.

The product of its digits is 3645000, while the sum is 50.

The spelling of 56591565233 in words is "fifty-six billion, five hundred ninety-one million, five hundred sixty-five thousand, two hundred thirty-three".