522264649 has 2 divisors, whose sum is σ = 522264650. Its totient is φ = 522264648.

The previous prime is 522264641. The next prime is 522264679. The reversal of 522264649 is 946462225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382906624 + 139358025 = 19568^2 + 11805^2 .

It is a cyclic number.

It is not a de Polignac number, because 522264649 - 2³ = 522264641 is a prime.

It is not a weakly prime, because it can be changed into another prime (522264641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261132324 + 261132325.

It is an arithmetic number, because the mean of its divisors is an integer number (261132325).

Almost surely, 2^522264649 is an apocalyptic number.

It is an amenable number.

522264649 is a deficient number, since it is larger than the sum of its proper divisors (1).

522264649 is an equidigital number, since it uses as much as digits as its factorization.

522264649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 522264649 is about 22853.1102697204. The cubic root of 522264649 is about 805.3108370991.

The spelling of 522264649 in words is "five hundred twenty-two million, two hundred sixty-four thousand, six hundred forty-nine".