522531135225 has 36 divisors (see below), whose sum is σ = 1020994174512. Its totient is φ = 253348428000.

The previous prime is 522531135199. The next prime is 522531135227.

522531135225 is a `hidden beast` number, since 52 + 2 + 531 + 1 + 3 + 52 + 25 = 666.

522531135225 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 522531135225 - 2⁷ = 522531135097 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 522531135225.

It is not an unprimeable number, because it can be changed into a prime (522531135227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 105559371 + ... + 105564320.

It is an arithmetic number, because the mean of its divisors is an integer number (28360949292).

Almost surely, 2^522531135225 is an apocalyptic number.

522531135225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

522531135225 is a deficient number, since it is larger than the sum of its proper divisors (498463039287).

522531135225 is a wasteful number, since it uses less digits than its factorization.

522531135225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211123718 (or 211123710 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

It can be divided in two parts, 522531 and 135225, that added together give a palindrome (657756).

The spelling of 522531135225 in words is "five hundred twenty-two billion, five hundred thirty-one million, one hundred thirty-five thousand, two hundred twenty-five".