56539532304 has 80 divisors (see below), whose sum is σ = 162378912640. Its totient is φ = 18836115840.

The previous prime is 56539532177. The next prime is 56539532323. The reversal of 56539532304 is 40323593565.

It is a happy number.

56539532304 is a `hidden beast` number, since 56 + 5 + 39 + 532 + 30 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 56539532304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768789 + ... + 839115.

It is an arithmetic number, because the mean of its divisors is an integer number (2029736408).

Almost surely, 2^56539532304 is an apocalyptic number.

56539532304 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

56539532304 is an abundant number, since it is smaller than the sum of its proper divisors (105839380336).

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

56539532304 is a wasteful number, since it uses less digits than its factorization.

56539532304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72205 (or 72193 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 45.

The spelling of 56539532304 in words is "fifty-six billion, five hundred thirty-nine million, five hundred thirty-two thousand, three hundred four".