57661912 has 32 divisors (see below), whose sum is σ = 134795520. Its totient is φ = 22465440.

The previous prime is 57661907. The next prime is 57661913. The reversal of 57661912 is 21916675.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57661913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46188 + ... + 47419.

It is an arithmetic number, because the mean of its divisors is an integer number (4212360).

Almost surely, 2^57661912 is an apocalyptic number.

It is an amenable number.

57661912 is an abundant number, since it is smaller than the sum of its proper divisors (77133608).

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

57661912 is a wasteful number, since it uses less digits than its factorization.

57661912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93631 (or 93627 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 57661912 is about 7593.5441000892. The cubic root of 57661912 is about 386.3340732284.

The spelling of 57661912 in words is "fifty-seven million, six hundred sixty-one thousand, nine hundred twelve".