56431805307 has 16 divisors (see below), whose sum is σ = 75486600960. Its totient is φ = 37499186592.

The previous prime is 56431805249. The next prime is 56431805357. The reversal of 56431805307 is 70350813465.

56431805307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56431805307 - 2¹² = 56431801211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56431805357) 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, 3446913 + ... + 3463245.

It is an arithmetic number, because the mean of its divisors is an integer number (4717912560).

Almost surely, 2^56431805307 is an apocalyptic number.

56431805307 is a deficient number, since it is larger than the sum of its proper divisors (19054795653).

56431805307 is a wasteful number, since it uses less digits than its factorization.

56431805307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20002.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 56431805307 in words is "fifty-six billion, four hundred thirty-one million, eight hundred five thousand, three hundred seven".