57133899 has 12 divisors (see below), whose sum is σ = 85189312. Its totient is φ = 36860400.

The previous prime is 57133891. The next prime is 57133907. The reversal of 57133899 is 99833175.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57133891) and next prime (57133907).

It is not a de Polignac number, because 57133899 - 2³ = 57133891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57133891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102112 + ... + 102669.

Almost surely, 2^57133899 is an apocalyptic number.

57133899 is a deficient number, since it is larger than the sum of its proper divisors (28055413).

57133899 is a wasteful number, since it uses less digits than its factorization.

57133899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204818 (or 204815 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 57133899 is about 7558.6969115053. The cubic root of 57133899 is about 385.1512286087.

It can be divided in two parts, 57 and 133899, that added together give a square (133956 = 366²).

The spelling of 57133899 in words is "fifty-seven million, one hundred thirty-three thousand, eight hundred ninety-nine".