522889209 has 8 divisors (see below), whose sum is σ = 774650720. Its totient is φ = 348592788.

The previous prime is 522889207. The next prime is 522889243. The reversal of 522889209 is 902988225.

It is not a de Polignac number, because 522889209 - 2¹ = 522889207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522889207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9683107 + ... + 9683160.

It is an arithmetic number, because the mean of its divisors is an integer number (96831340).

Almost surely, 2^522889209 is an apocalyptic number.

It is an amenable number.

522889209 is a deficient number, since it is larger than the sum of its proper divisors (251761511).

522889209 is a wasteful number, since it uses less digits than its factorization.

522889209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19366276 (or 19366270 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 522889209 is about 22866.7708476733. The cubic root of 522889209 is about 805.6317245885.

The spelling of 522889209 in words is "five hundred twenty-two million, eight hundred eighty-nine thousand, two hundred nine".