57292280 has 32 divisors (see below), whose sum is σ = 132395040. Its totient is φ = 22296960.

The previous prime is 57292273. The next prime is 57292289. The reversal of 57292280 is 8229275.

It is a self number, because there is not a number n which added to its sum of digits gives 57292280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57292289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17876 + ... + 20835.

It is an arithmetic number, because the mean of its divisors is an integer number (4137345).

Almost surely, 2^57292280 is an apocalyptic number.

It is an amenable number.

57292280 is an abundant number, since it is smaller than the sum of its proper divisors (75102760).

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

57292280 is a wasteful number, since it uses less digits than its factorization.

57292280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38759 (or 38755 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 57292280 is about 7569.1664006019. The cubic root of 57292280 is about 385.5067930972.

The spelling of 57292280 in words is "fifty-seven million, two hundred ninety-two thousand, two hundred eighty".