522322561 has 2 divisors, whose sum is σ = 522322562. Its totient is φ = 522322560.

The previous prime is 522322531. The next prime is 522322573. The reversal of 522322561 is 165223225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 484880400 + 37442161 = 22020^2 + 6119^2 .

It is a cyclic number.

It is not a de Polignac number, because 522322561 - 2⁵ = 522322529 is a prime.

It is not a weakly prime, because it can be changed into another prime (522322531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261161280 + 261161281.

It is an arithmetic number, because the mean of its divisors is an integer number (261161281).

Almost surely, 2^522322561 is an apocalyptic number.

It is an amenable number.

522322561 is a deficient number, since it is larger than the sum of its proper divisors (1).

522322561 is an equidigital number, since it uses as much as digits as its factorization.

522322561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 522322561 is about 22854.3772831377. The cubic root of 522322561 is about 805.3406019814.

Adding to 522322561 its reverse (165223225), we get a palindrome (687545786).

The spelling of 522322561 in words is "five hundred twenty-two million, three hundred twenty-two thousand, five hundred sixty-one".