57197800 has 48 divisors (see below), whose sum is σ = 145080000. Its totient is φ = 20798400.

The previous prime is 57197797. The next prime is 57197837. The reversal of 57197800 is 879175.

It is a self number, because there is not a number n which added to its sum of digits gives 57197800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10800 + ... + 15199.

It is an arithmetic number, because the mean of its divisors is an integer number (3022500).

Almost surely, 2^57197800 is an apocalyptic number.

57197800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57197800 is an abundant number, since it is smaller than the sum of its proper divisors (87882200).

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

57197800 is a wasteful number, since it uses less digits than its factorization.

57197800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26026 (or 26017 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 57197800 is about 7562.9227154586. The cubic root of 57197800 is about 385.2947649870.

The spelling of 57197800 in words is "fifty-seven million, one hundred ninety-seven thousand, eight hundred".