57320456 has 8 divisors (see below), whose sum is σ = 107475870. Its totient is φ = 28660224.

The previous prime is 57320423. The next prime is 57320467. The reversal of 57320456 is 65402375.

It can be written as a sum of positive squares in only one way, i.e., 54257956 + 3062500 = 7366^2 + 1750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3582521 + ... + 3582536.

Almost surely, 2^57320456 is an apocalyptic number.

It is an amenable number.

57320456 is a deficient number, since it is larger than the sum of its proper divisors (50155414).

57320456 is a wasteful number, since it uses less digits than its factorization.

57320456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7165063 (or 7165059 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 57320456 is about 7571.0274071621. The cubic root of 57320456 is about 385.5699793838.

The spelling of 57320456 in words is "fifty-seven million, three hundred twenty thousand, four hundred fifty-six".