57320001 has 8 divisors (see below), whose sum is σ = 84918560. Its totient is φ = 38213316.

The previous prime is 57319981. The next prime is 57320027. The reversal of 57320001 is 10002375.

It is not a de Polignac number, because 57320001 - 2⁹ = 57319489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57320101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061455 + ... + 1061508.

It is an arithmetic number, because the mean of its divisors is an integer number (10614820).

Almost surely, 2^57320001 is an apocalyptic number.

It is an amenable number.

57320001 is a deficient number, since it is larger than the sum of its proper divisors (27598559).

57320001 is a wasteful number, since it uses less digits than its factorization.

57320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122972 (or 2122966 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 57320001 is about 7570.9973583406. The cubic root of 57320001 is about 385.5689591848.

Adding to 57320001 its reverse (10002375), we get a palindrome (67322376).

The spelling of 57320001 in words is "fifty-seven million, three hundred twenty thousand, one".