522485138 has 18 divisors (see below), whose sum is σ = 912078261. Its totient is φ = 223825224.

The previous prime is 522485111. The next prime is 522485147. The reversal of 522485138 is 831584225.

It can be written as a sum of positive squares in 2 ways, for example, as 455523649 + 66961489 = 21343^2 + 8183^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=16163.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 225128 + ... + 227436.

Almost surely, 2^522485138 is an apocalyptic number.

522485138 is a deficient number, since it is larger than the sum of its proper divisors (389593123).

522485138 is an frugal number, since it uses more digits than its factorization.

522485138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634 (or 2318 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 522485138 is about 22857.9338086363. The cubic root of 522485138 is about 805.4241495099.

The spelling of 522485138 in words is "five hundred twenty-two million, four hundred eighty-five thousand, one hundred thirty-eight".