57221968252 has 12 divisors (see below), whose sum is σ = 100180377640. Its totient is φ = 28599003216.

The previous prime is 57221968231. The next prime is 57221968361. The reversal of 57221968252 is 25286912275.

It is a junction number, because it is equal to n+sod(n) for n = 57221968196 and 57221968205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2984478 + ... + 3003589.

Almost surely, 2^57221968252 is an apocalyptic number.

It is an amenable number.

57221968252 is a deficient number, since it is larger than the sum of its proper divisors (42958409388).

57221968252 is a wasteful number, since it uses less digits than its factorization.

57221968252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5990460 (or 5990458 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 49.

The spelling of 57221968252 in words is "fifty-seven billion, two hundred twenty-one million, nine hundred sixty-eight thousand, two hundred fifty-two".