57000656220 has 24 divisors (see below), whose sum is σ = 159601837584. Its totient is φ = 15200174976.

The previous prime is 57000656213. The next prime is 57000656231. The reversal of 57000656220 is 2265600075.

57000656220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475005409 + ... + 475005528.

It is an arithmetic number, because the mean of its divisors is an integer number (6650076566).

Almost surely, 2^57000656220 is an apocalyptic number.

It is an amenable number.

57000656220 is an abundant number, since it is smaller than the sum of its proper divisors (102601181364).

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

57000656220 is a wasteful number, since it uses less digits than its factorization.

57000656220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950010949 (or 950010947 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 57000656220 in words is "fifty-seven billion, six hundred fifty-six thousand, two hundred twenty".