57199320 has 96 divisors (see below), whose sum is σ = 189118800. Its totient is φ = 14989056.

The previous prime is 57199301. The next prime is 57199327. The reversal of 57199320 is 2399175.

57199320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57199327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19894 + ... + 22586.

Almost surely, 2^57199320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57199320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94559400).

57199320 is an abundant number, since it is smaller than the sum of its proper divisors (131919480).

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

57199320 is a wasteful number, since it uses less digits than its factorization.

57199320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769 (or 2762 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 57199320 is about 7563.0232050418. The cubic root of 57199320 is about 385.2981779554.

The spelling of 57199320 in words is "fifty-seven million, one hundred ninety-nine thousand, three hundred twenty".