57156317 has 2 divisors, whose sum is σ = 57156318. Its totient is φ = 57156316.

The previous prime is 57156301. The next prime is 57156347. The reversal of 57156317 is 71365175.

57156317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48594841 + 8561476 = 6971^2 + 2926^2 .

It is a cyclic number.

It is not a de Polignac number, because 57156317 - 2⁴ = 57156301 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57156347) 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, 28578158 + 28578159.

It is an arithmetic number, because the mean of its divisors is an integer number (28578159).

Almost surely, 2^57156317 is an apocalyptic number.

It is an amenable number.

57156317 is a deficient number, since it is larger than the sum of its proper divisors (1).

57156317 is an equidigital number, since it uses as much as digits as its factorization.

57156317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22050, while the sum is 35.

The square root of 57156317 is about 7560.1796936316. The cubic root of 57156317 is about 385.2015967867.

The spelling of 57156317 in words is "fifty-seven million, one hundred fifty-six thousand, three hundred seventeen".