56431068533 has 16 divisors (see below), whose sum is σ = 66022387200. Its totient is φ = 47223204336.

The previous prime is 56431068497. The next prime is 56431068539. The reversal of 56431068533 is 33586013465.

It is a happy number.

It is not a de Polignac number, because 56431068533 - 2¹⁰ = 56431067509 is a prime.

It is a super-2 number, since 2×56431068533² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56431068539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641018 + ... + 723716.

It is an arithmetic number, because the mean of its divisors is an integer number (4126399200).

Almost surely, 2^56431068533 is an apocalyptic number.

It is an amenable number.

56431068533 is a deficient number, since it is larger than the sum of its proper divisors (9591318667).

56431068533 is a wasteful number, since it uses less digits than its factorization.

56431068533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85016.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 56431068533 in words is "fifty-six billion, four hundred thirty-one million, sixty-eight thousand, five hundred thirty-three".