57061788 has 48 divisors (see below), whose sum is σ = 160177920. Its totient is φ = 15444864.

The previous prime is 57061759. The next prime is 57061789. The reversal of 57061788 is 88716075.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57061789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16281 + ... + 19472.

It is an arithmetic number, because the mean of its divisors is an integer number (3337040).

Almost surely, 2^57061788 is an apocalyptic number.

It is an amenable number.

57061788 is an abundant number, since it is smaller than the sum of its proper divisors (103116132).

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

57061788 is a wasteful number, since it uses less digits than its factorization.

57061788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35786 (or 35784 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 57061788 is about 7553.9253372005. The cubic root of 57061788 is about 384.9891220854.

The spelling of 57061788 in words is "fifty-seven million, sixty-one thousand, seven hundred eighty-eight".