57322992 has 80 divisors (see below), whose sum is σ = 156061440. Its totient is φ = 18095616.

The previous prime is 57322973. The next prime is 57323009. The reversal of 57322992 is 29922375.

It is a self number, because there is not a number n which added to its sum of digits gives 57322992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151059 + ... + 151437.

It is an arithmetic number, because the mean of its divisors is an integer number (1950768).

Almost surely, 2^57322992 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 57322992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78030720).

57322992 is an abundant number, since it is smaller than the sum of its proper divisors (98738448).

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

57322992 is a wasteful number, since it uses less digits than its factorization.

57322992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 544 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 57322992 is about 7571.1948858816. The cubic root of 57322992 is about 385.5756654926.

The spelling of 57322992 in words is "fifty-seven million, three hundred twenty-two thousand, nine hundred ninety-two".