57320171 has 2 divisors, whose sum is σ = 57320172. Its totient is φ = 57320170.

The previous prime is 57320167. The next prime is 57320177. The reversal of 57320171 is 17102375.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57320171 - 2² = 57320167 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57320171.

It is not a weakly prime, because it can be changed into another prime (57320177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28660085 + 28660086.

It is an arithmetic number, because the mean of its divisors is an integer number (28660086).

Almost surely, 2^57320171 is an apocalyptic number.

57320171 is a deficient number, since it is larger than the sum of its proper divisors (1).

57320171 is an equidigital number, since it uses as much as digits as its factorization.

57320171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 57320171 is about 7571.0085853868. The cubic root of 57320171 is about 385.5693403587.

The spelling of 57320171 in words is "fifty-seven million, three hundred twenty thousand, one hundred seventy-one".