57555994 has 4 divisors (see below), whose sum is σ = 86333994. Its totient is φ = 28777996.

The previous prime is 57555989. The next prime is 57556013. The reversal of 57555994 is 49955575.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48930025 + 8625969 = 6995^2 + 2937^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14388997 + ... + 14389000.

Almost surely, 2^57555994 is an apocalyptic number.

57555994 is a deficient number, since it is larger than the sum of its proper divisors (28778000).

57555994 is a wasteful number, since it uses less digits than its factorization.

57555994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28777999.

The product of its digits is 1417500, while the sum is 49.

The square root of 57555994 is about 7586.5666806534. The cubic root of 57555994 is about 386.0973784940.

The spelling of 57555994 in words is "fifty-seven million, five hundred fifty-five thousand, nine hundred ninety-four".