56898136528 has 20 divisors (see below), whose sum is σ = 110502005668. Its totient is φ = 28381489920.

The previous prime is 56898136499. The next prime is 56898136543. The reversal of 56898136528 is 82563189865.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22364604304 + 34533532224 = 149548^2 + 185832^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4216701 + ... + 4230172.

Almost surely, 2^56898136528 is an apocalyptic number.

It is an amenable number.

56898136528 is a deficient number, since it is larger than the sum of its proper divisors (53603869140).

56898136528 is a wasteful number, since it uses less digits than its factorization.

56898136528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8447302 (or 8447296 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 61.

The spelling of 56898136528 in words is "fifty-six billion, eight hundred ninety-eight million, one hundred thirty-six thousand, five hundred twenty-eight".