56398253904 has 90 divisors (see below), whose sum is σ = 163467456126. Its totient is φ = 18151123200.

The previous prime is 56398253893. The next prime is 56398253917. The reversal of 56398253904 is 40935289365.

It can be written as a sum of positive squares in 3 ways, for example, as 8416227600 + 47982026304 = 91740^2 + 219048^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 111747 + ... + 353954.

Almost surely, 2^56398253904 is an apocalyptic number.

It is an amenable number.

56398253904 is an abundant number, since it is smaller than the sum of its proper divisors (107069202222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56398253904 is a wasteful number, since it uses less digits than its factorization.

56398253904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465773 (or 465735 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 54.

The spelling of 56398253904 in words is "fifty-six billion, three hundred ninety-eight million, two hundred fifty-three thousand, nine hundred four".