57148880 has 20 divisors (see below), whose sum is σ = 132871332. Its totient is φ = 22859520.

The previous prime is 57148867. The next prime is 57148901. The reversal of 57148880 is 8884175.

It can be written as a sum of positive squares in 2 ways, for example, as 43191184 + 13957696 = 6572^2 + 3736^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 357101 + ... + 357260.

Almost surely, 2^57148880 is an apocalyptic number.

It is an amenable number.

57148880 is an abundant number, since it is smaller than the sum of its proper divisors (75722452).

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

57148880 is a wasteful number, since it uses less digits than its factorization.

57148880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714374 (or 714368 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 57148880 is about 7559.6878242425. The cubic root of 57148880 is about 385.1848889891.

The spelling of 57148880 in words is "fifty-seven million, one hundred forty-eight thousand, eight hundred eighty".