57649880 has 32 divisors (see below), whose sum is σ = 131844240. Its totient is φ = 22680960.

The previous prime is 57649859. The next prime is 57649897. The reversal of 57649880 is 8894675.

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, 9374 + ... + 14253.

Almost surely, 2^57649880 is an apocalyptic number.

It is an amenable number.

57649880 is an abundant number, since it is smaller than the sum of its proper divisors (74194360).

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

57649880 is a wasteful number, since it uses less digits than its factorization.

57649880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23699 (or 23695 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 57649880 is about 7592.7518068221. The cubic root of 57649880 is about 386.3071999438.

The spelling of 57649880 in words is "fifty-seven million, six hundred forty-nine thousand, eight hundred eighty".