57521332 has 12 divisors (see below), whose sum is σ = 109813536. Its totient is φ = 26146040.

The previous prime is 57521327. The next prime is 57521339. The reversal of 57521332 is 23312575.

It is a self number, because there is not a number n which added to its sum of digits gives 57521332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57521339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653608 + ... + 653695.

It is an arithmetic number, because the mean of its divisors is an integer number (9151128).

Almost surely, 2^57521332 is an apocalyptic number.

It is an amenable number.

57521332 is a deficient number, since it is larger than the sum of its proper divisors (52292204).

57521332 is a wasteful number, since it uses less digits than its factorization.

57521332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307318 (or 1307316 counting only the distinct ones).

The product of its digits is 6300, while the sum is 28.

The square root of 57521332 is about 7584.2819040434. The cubic root of 57521332 is about 386.0198563349.

The spelling of 57521332 in words is "fifty-seven million, five hundred twenty-one thousand, three hundred thirty-two".