57208900 has 36 divisors (see below), whose sum is σ = 141879808. Its totient is φ = 19614240.

The previous prime is 57208897. The next prime is 57208903. The reversal of 57208900 is 980275.

It is an interprime number because it is at equal distance from previous prime (57208897) and next prime (57208903).

It is not an unprimeable number, because it can be changed into a prime (57208903) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 40164 + ... + 41563.

Almost surely, 2^57208900 is an apocalyptic number.

57208900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57208900 is an abundant number, since it is smaller than the sum of its proper divisors (84670908).

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

57208900 is a wasteful number, since it uses less digits than its factorization.

57208900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81748 (or 81741 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 57208900 is about 7563.6565231375. The cubic root of 57208900 is about 385.3196872466.

The spelling of 57208900 in words is "fifty-seven million, two hundred eight thousand, nine hundred".