522353385 has 12 divisors (see below), whose sum is σ = 905412612. Its totient is φ = 278588448.

The previous prime is 522353357. The next prime is 522353387. The reversal of 522353385 is 583353225.

522353385 is a `hidden beast` number, since 5 + 223 + 53 + 385 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 208744704 + 313608681 = 14448^2 + 17709^2 .

It is not a de Polignac number, because 522353385 - 2⁸ = 522353129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (522353387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5803882 + ... + 5803971.

It is an arithmetic number, because the mean of its divisors is an integer number (75451051).

Almost surely, 2^522353385 is an apocalyptic number.

It is an amenable number.

522353385 is a deficient number, since it is larger than the sum of its proper divisors (383059227).

522353385 is a wasteful number, since it uses less digits than its factorization.

522353385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11607864 (or 11607861 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 522353385 is about 22855.0516297820. The cubic root of 522353385 is about 805.3564436166.

The spelling of 522353385 in words is "five hundred twenty-two million, three hundred fifty-three thousand, three hundred eighty-five".