57711090 has 32 divisors (see below), whose sum is σ = 146655360. Its totient is φ = 14484224.

The previous prime is 57711079. The next prime is 57711161. The reversal of 57711090 is 9011775.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56070 + ... + 57089.

It is an arithmetic number, because the mean of its divisors is an integer number (4582980).

Almost surely, 2^57711090 is an apocalyptic number.

57711090 is an abundant number, since it is smaller than the sum of its proper divisors (88944270).

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

57711090 is a wasteful number, since it uses less digits than its factorization.

57711090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113186.

The product of its (nonzero) digits is 2205, while the sum is 30.

The square root of 57711090 is about 7596.7815553694. The cubic root of 57711090 is about 386.4438726766.

The spelling of 57711090 in words is "fifty-seven million, seven hundred eleven thousand, ninety".