522531013 has 2 divisors, whose sum is σ = 522531014. Its totient is φ = 522531012.

The previous prime is 522530999. The next prime is 522531029. The reversal of 522531013 is 310135225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 522488164 + 42849 = 22858^2 + 207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-522531013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522331013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261265506 + 261265507.

It is an arithmetic number, because the mean of its divisors is an integer number (261265507).

Almost surely, 2^522531013 is an apocalyptic number.

It is an amenable number.

522531013 is a deficient number, since it is larger than the sum of its proper divisors (1).

522531013 is an equidigital number, since it uses as much as digits as its factorization.

522531013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 522531013 is about 22858.9372675109. The cubic root of 522531013 is about 805.4477213137.

Adding to 522531013 its reverse (310135225), we get a palindrome (832666238).

The spelling of 522531013 in words is "five hundred twenty-two million, five hundred thirty-one thousand, thirteen".