57072332 has 24 divisors (see below), whose sum is σ = 107493120. Its totient is φ = 26415360.

The previous prime is 57072317. The next prime is 57072359. The reversal of 57072332 is 23327075.

It is a junction number, because it is equal to n+sod(n) for n = 57072295 and 57072304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2732 + ... + 11027.

It is an arithmetic number, because the mean of its divisors is an integer number (4478880).

Almost surely, 2^57072332 is an apocalyptic number.

It is an amenable number.

57072332 is a deficient number, since it is larger than the sum of its proper divisors (50420788).

57072332 is a wasteful number, since it uses less digits than its factorization.

57072332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13841 (or 13839 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 57072332 is about 7554.6232202539. The cubic root of 57072332 is about 385.0128336645.

The spelling of 57072332 in words is "fifty-seven million, seventy-two thousand, three hundred thirty-two".