522768317 has 2 divisors, whose sum is σ = 522768318. Its totient is φ = 522768316.

The previous prime is 522768307. The next prime is 522768319. The reversal of 522768317 is 713867225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287268601 + 235499716 = 16949^2 + 15346^2 .

It is a cyclic number.

It is not a de Polignac number, because 522768317 - 2²² = 518574013 is a prime.

Together with 522768319, 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 (522768319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261384158 + 261384159.

It is an arithmetic number, because the mean of its divisors is an integer number (261384159).

Almost surely, 2^522768317 is an apocalyptic number.

It is an amenable number.

522768317 is a deficient number, since it is larger than the sum of its proper divisors (1).

522768317 is an equidigital number, since it uses as much as digits as its factorization.

522768317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 41.

The square root of 522768317 is about 22864.1272958318. The cubic root of 522768317 is about 805.5696324438.

The spelling of 522768317 in words is "five hundred twenty-two million, seven hundred sixty-eight thousand, three hundred seventeen".