57064209 has 8 divisors (see below), whose sum is σ = 76759392. Its totient is φ = 37705920.

The previous prime is 57064193. The next prime is 57064213. The reversal of 57064209 is 90246075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57064209 - 2⁴ = 57064193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57064209.

It is not an unprimeable number, because it can be changed into a prime (57064279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83827 + ... + 84504.

It is an arithmetic number, because the mean of its divisors is an integer number (9594924).

Almost surely, 2^57064209 is an apocalyptic number.

It is an amenable number.

57064209 is a deficient number, since it is larger than the sum of its proper divisors (19695183).

57064209 is a wasteful number, since it uses less digits than its factorization.

57064209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168447.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 57064209 is about 7554.0855833119. The cubic root of 57064209 is about 384.9945667418.

The spelling of 57064209 in words is "fifty-seven million, sixty-four thousand, two hundred nine".