522573521 has 2 divisors, whose sum is σ = 522573522. Its totient is φ = 522573520.

The previous prime is 522573497. The next prime is 522573551. The reversal of 522573521 is 125375225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307511296 + 215062225 = 17536^2 + 14665^2 .

It is a cyclic number.

It is not a de Polignac number, because 522573521 - 2¹⁴ = 522557137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (522573551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261286760 + 261286761.

It is an arithmetic number, because the mean of its divisors is an integer number (261286761).

Almost surely, 2^522573521 is an apocalyptic number.

It is an amenable number.

522573521 is a deficient number, since it is larger than the sum of its proper divisors (1).

522573521 is an equidigital number, since it uses as much as digits as its factorization.

522573521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21000, while the sum is 32.

The square root of 522573521 is about 22859.8670381085. The cubic root of 522573521 is about 805.4695618313.

The spelling of 522573521 in words is "five hundred twenty-two million, five hundred seventy-three thousand, five hundred twenty-one".