57311717 has 2 divisors, whose sum is σ = 57311718. Its totient is φ = 57311716.

The previous prime is 57311687. The next prime is 57311719. The reversal of 57311717 is 71711375.

57311717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55368481 + 1943236 = 7441^2 + 1394^2 .

It is a cyclic number.

It is not a de Polignac number, because 57311717 - 2¹⁴ = 57295333 is a prime.

Together with 57311719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57311719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28655858 + 28655859.

It is an arithmetic number, because the mean of its divisors is an integer number (28655859).

Almost surely, 2^57311717 is an apocalyptic number.

It is an amenable number.

57311717 is a deficient number, since it is larger than the sum of its proper divisors (1).

57311717 is an equidigital number, since it uses as much as digits as its factorization.

57311717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5145, while the sum is 32.

The square root of 57311717 is about 7570.4502508107. The cubic root of 57311717 is about 385.5503838936.

The spelling of 57311717 in words is "fifty-seven million, three hundred eleven thousand, seven hundred seventeen".