57121080 has 32 divisors (see below), whose sum is σ = 171363600. Its totient is φ = 15232256.

The previous prime is 57121079. The next prime is 57121091. The reversal of 57121080 is 8012175.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 57121080.

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, 237885 + ... + 238124.

Almost surely, 2^57121080 is an apocalyptic number.

It is an amenable number.

57121080 is an abundant number, since it is smaller than the sum of its proper divisors (114242520).

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

57121080 is a wasteful number, since it uses less digits than its factorization.

57121080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476023 (or 476019 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 57121080 is about 7557.8489003155. The cubic root of 57121080 is about 385.1224212924.

The spelling of 57121080 in words is "fifty-seven million, one hundred twenty-one thousand, eighty".