522522921 has 8 divisors (see below), whose sum is σ = 696818304. Its totient is φ = 348288080.

The previous prime is 522522907. The next prime is 522522937. The reversal of 522522921 is 129225225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522522921 - 2¹⁰ = 522521897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (522522941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11911 + ... + 34451.

It is an arithmetic number, because the mean of its divisors is an integer number (87102288).

Almost surely, 2^522522921 is an apocalyptic number.

It is an amenable number.

522522921 is a deficient number, since it is larger than the sum of its proper divisors (174295383).

522522921 is a wasteful number, since it uses less digits than its factorization.

522522921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30271.

The product of its digits is 7200, while the sum is 30.

The square root of 522522921 is about 22858.7602682210. The cubic root of 522522921 is about 805.4435635276.

The spelling of 522522921 in words is "five hundred twenty-two million, five hundred twenty-two thousand, nine hundred twenty-one".