56331552729 has 32 divisors (see below), whose sum is σ = 76903739136. Its totient is φ = 36670648320.

The previous prime is 56331552713. The next prime is 56331552749. The reversal of 56331552729 is 92725513365.

It is not a de Polignac number, because 56331552729 - 2⁴ = 56331552713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56331552749) 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, 6653559 + ... + 6662019.

It is an arithmetic number, because the mean of its divisors is an integer number (2403241848).

Almost surely, 2^56331552729 is an apocalyptic number.

It is an amenable number.

56331552729 is a deficient number, since it is larger than the sum of its proper divisors (20572186407).

56331552729 is a wasteful number, since it uses less digits than its factorization.

56331552729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8865.

The product of its digits is 1701000, while the sum is 48.

The spelling of 56331552729 in words is "fifty-six billion, three hundred thirty-one million, five hundred fifty-two thousand, seven hundred twenty-nine".