57550916 has 24 divisors (see below), whose sum is σ = 106971480. Its totient is φ = 26998272.

The previous prime is 57550897. The next prime is 57550957. The reversal of 57550916 is 61905575.

It can be written as a sum of positive squares in 4 ways, for example, as 4202500 + 53348416 = 2050^2 + 7304^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57550916.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24230 + ... + 26498.

It is an arithmetic number, because the mean of its divisors is an integer number (4457145).

Almost surely, 2^57550916 is an apocalyptic number.

It is an amenable number.

57550916 is a deficient number, since it is larger than the sum of its proper divisors (49420564).

57550916 is a wasteful number, since it uses less digits than its factorization.

57550916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663 (or 2661 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 57550916 is about 7586.2320027798. The cubic root of 57550916 is about 386.0860234058.

The spelling of 57550916 in words is "fifty-seven million, five hundred fifty thousand, nine hundred sixteen".