57208332 has 48 divisors (see below), whose sum is σ = 142242912. Its totient is φ = 17832960.

The previous prime is 57208309. The next prime is 57208343. The reversal of 57208332 is 23380275.

57208332 is digitally balanced in base 2 and base 9, because in such bases it contains all the possibile digits an equal number of times.

57208332 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 57208332.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 34482 + ... + 36102.

It is an arithmetic number, because the mean of its divisors is an integer number (2963394).

Almost surely, 2^57208332 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 57208332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71121456).

57208332 is an abundant number, since it is smaller than the sum of its proper divisors (85034580).

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

57208332 is a wasteful number, since it uses less digits than its factorization.

57208332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 57208332 is about 7563.6189750674. The cubic root of 57208332 is about 385.3184120237.

The spelling of 57208332 in words is "fifty-seven million, two hundred eight thousand, three hundred thirty-two".