56439054388 has 12 divisors (see below), whose sum is σ = 98837569152. Its totient is φ = 28199748920.

The previous prime is 56439054313. The next prime is 56439054403. The reversal of 56439054388 is 88345093465.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4938148 + ... + 4949563.

It is an arithmetic number, because the mean of its divisors is an integer number (8236464096).

Almost surely, 2^56439054388 is an apocalyptic number.

It is an amenable number.

56439054388 is a deficient number, since it is larger than the sum of its proper divisors (42398514764).

56439054388 is a wasteful number, since it uses less digits than its factorization.

56439054388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9889142 (or 9889140 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 55.

The spelling of 56439054388 in words is "fifty-six billion, four hundred thirty-nine million, fifty-four thousand, three hundred eighty-eight".