522322531 has 2 divisors, whose sum is σ = 522322532. Its totient is φ = 522322530.

The previous prime is 522322529. The next prime is 522322561. The reversal of 522322531 is 135223225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 522322531 - 2¹ = 522322529 is a prime.

It is a super-2 number, since 2×522322531² = 545641652780491922, which contains 22 as substring.

Together with 522322529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 522322496 and 522322505.

It is not a weakly prime, because it can be changed into another prime (522322561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261161265 + 261161266.

It is an arithmetic number, because the mean of its divisors is an integer number (261161266).

Almost surely, 2^522322531 is an apocalyptic number.

522322531 is a deficient number, since it is larger than the sum of its proper divisors (1).

522322531 is an equidigital number, since it uses as much as digits as its factorization.

522322531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 522322531 is about 22854.3766268083. The cubic root of 522322531 is about 805.3405865630.

Adding to 522322531 its reverse (135223225), we get a palindrome (657545756).

The spelling of 522322531 in words is "five hundred twenty-two million, three hundred twenty-two thousand, five hundred thirty-one".