522444961 has 2 divisors, whose sum is σ = 522444962. Its totient is φ = 522444960.

The previous prime is 522444959. The next prime is 522445019. The reversal of 522444961 is 169444225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513294336 + 9150625 = 22656^2 + 3025^2 .

It is a cyclic number.

It is not a de Polignac number, because 522444961 - 2¹ = 522444959 is a prime.

Together with 522444959, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 522444961.

It is not a weakly prime, because it can be changed into another prime (522444061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261222480 + 261222481.

It is an arithmetic number, because the mean of its divisors is an integer number (261222481).

Almost surely, 2^522444961 is an apocalyptic number.

It is an amenable number.

522444961 is a deficient number, since it is larger than the sum of its proper divisors (1).

522444961 is an equidigital number, since it uses as much as digits as its factorization.

522444961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 522444961 is about 22857.0549502774. The cubic root of 522444961 is about 805.4035043577.

The spelling of 522444961 in words is "five hundred twenty-two million, four hundred forty-four thousand, nine hundred sixty-one".