522746993 has 2 divisors, whose sum is σ = 522746994. Its totient is φ = 522746992.

The previous prime is 522746963. The next prime is 522746999. The reversal of 522746993 is 399647225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356001424 + 166745569 = 18868^2 + 12913^2 .

It is a cyclic number.

It is not a de Polignac number, because 522746993 - 2¹² = 522742897 is a prime.

It is not a weakly prime, because it can be changed into another prime (522746999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261373496 + 261373497.

It is an arithmetic number, because the mean of its divisors is an integer number (261373497).

Almost surely, 2^522746993 is an apocalyptic number.

It is an amenable number.

522746993 is a deficient number, since it is larger than the sum of its proper divisors (1).

522746993 is an equidigital number, since it uses as much as digits as its factorization.

522746993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The square root of 522746993 is about 22863.6609710694. The cubic root of 522746993 is about 805.5586790891.

The spelling of 522746993 in words is "five hundred twenty-two million, seven hundred forty-six thousand, nine hundred ninety-three".