57235320 has 96 divisors (see below), whose sum is σ = 187293600. Its totient is φ = 15158016.

The previous prime is 57235319. The next prime is 57235351. The reversal of 57235320 is 2353275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61821 + ... + 62739.

It is an arithmetic number, because the mean of its divisors is an integer number (1950975).

Almost surely, 2^57235320 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 57235320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93646800).

57235320 is an abundant number, since it is smaller than the sum of its proper divisors (130058280).

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

57235320 is a wasteful number, since it uses less digits than its factorization.

57235320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 57235320 is about 7565.4028313104. The cubic root of 57235320 is about 385.3789937498.

Adding to 57235320 its reverse (2353275), we get a palindrome (59588595).

The spelling of 57235320 in words is "fifty-seven million, two hundred thirty-five thousand, three hundred twenty".