522423532009 has 2 divisors, whose sum is σ = 522423532010. Its totient is φ = 522423532008.

The previous prime is 522423531991. The next prime is 522423532019. The reversal of 522423532009 is 900235324225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 407366892009 + 115056640000 = 638253^2 + 339200^2 .

It is a cyclic number.

It is not a de Polignac number, because 522423532009 - 2²⁹ = 521886661097 is a prime.

It is not a weakly prime, because it can be changed into another prime (522423532019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261211766004 + 261211766005.

It is an arithmetic number, because the mean of its divisors is an integer number (261211766005).

Almost surely, 2^522423532009 is an apocalyptic number.

It is an amenable number.

522423532009 is a deficient number, since it is larger than the sum of its proper divisors (1).

522423532009 is an equidigital number, since it uses as much as digits as its factorization.

522423532009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 522423532009 in words is "five hundred twenty-two billion, four hundred twenty-three million, five hundred thirty-two thousand, nine".