522225225 has 144 divisors (see below), whose sum is σ = 1039933440. Its totient is φ = 259329600.

The previous prime is 522225173. The next prime is 522225229. The reversal of 522225225 is 522522225.

It is not a de Polignac number, because 522225225 - 2¹⁵ = 522192457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (522225229) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 8851246 + ... + 8851304.

It is an arithmetic number, because the mean of its divisors is an integer number (7221760).

Almost surely, 2^522225225 is an apocalyptic number.

It is an amenable number.

522225225 is a deficient number, since it is larger than the sum of its proper divisors (517708215).

522225225 is a wasteful number, since it uses less digits than its factorization.

522225225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 145 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 522225225 is about 22852.2477012656. The cubic root of 522225225 is about 805.2905731879.

The spelling of 522225225 in words is "five hundred twenty-two million, two hundred twenty-five thousand, two hundred twenty-five".