57064331 has 4 divisors (see below), whose sum is σ = 57082272. Its totient is φ = 57046392.

The previous prime is 57064297. The next prime is 57064361. The reversal of 57064331 is 13346075.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57064331 is a prime.

It is a super-2 number, since 2×57064331² = 6512675744955122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57064294 and 57064303.

It is not an unprimeable number, because it can be changed into a prime (57064361) 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, 2771 + ... + 11036.

It is an arithmetic number, because the mean of its divisors is an integer number (14270568).

Almost surely, 2^57064331 is an apocalyptic number.

57064331 is a deficient number, since it is larger than the sum of its proper divisors (17941).

57064331 is a wasteful number, since it uses less digits than its factorization.

57064331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17940.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 57064331 is about 7554.0936584080. The cubic root of 57064331 is about 384.9948411070.

The spelling of 57064331 in words is "fifty-seven million, sixty-four thousand, three hundred thirty-one".