522531 has 10 divisors (see below), whose sum is σ = 780692. Its totient is φ = 348300.

The previous prime is 522523. The next prime is 522541. The reversal of 522531 is 135225.

It is a happy number.

It is not a de Polignac number, because 522531 - 2³ = 522523 is a prime.

It is a super-2 number, since 2×522531² = 546077291922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522521) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3145 + ... + 3306.

2⁵²²⁵³¹ is an apocalyptic number.

522531 is a deficient number, since it is larger than the sum of its proper divisors (258161).

522531 is an equidigital number, since it uses as much as digits as its factorization.

522531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463 (or 6454 counting only the distinct ones).

The product of its digits is 300, while the sum is 18.

The square root of 522531 is about 722.8630575704. The cubic root of 522531 is about 80.5447714634.

Adding to 522531 its reverse (135225), we get a palindrome (657756).

The spelling of 522531 in words is "five hundred twenty-two thousand, five hundred thirty-one".