556706521000 has 64 divisors (see below), whose sum is σ = 1488792314880. Its totient is φ = 190870804800.

The previous prime is 556706520991. The next prime is 556706521039. The reversal of 556706521000 is 125607655.

556706521000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 39757752 + ... + 39771751.

It is an arithmetic number, because the mean of its divisors is an integer number (23262379920).

Almost surely, 2^556706521000 is an apocalyptic number.

556706521000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

556706521000 is an abundant number, since it is smaller than the sum of its proper divisors (932085793880).

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

556706521000 is a wasteful number, since it uses less digits than its factorization.

556706521000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79529531 (or 79529517 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 556706521000 in words is "five hundred fifty-six billion, seven hundred six million, five hundred twenty-one thousand".