225255522 has 16 divisors (see below), whose sum is σ = 450757440. Its totient is φ = 75044112.

The previous prime is 225255509. The next prime is 225255539. The reversal of 225255522 is 225552522.

It is a self number, because there is not a number n which added to its sum of digits gives 225255522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2923 + ... + 21425.

It is an arithmetic number, because the mean of its divisors is an integer number (28172340).

Almost surely, 2^225255522 is an apocalyptic number.

225255522 is an abundant number, since it is smaller than the sum of its proper divisors (225501918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225255522 is a wasteful number, since it uses less digits than its factorization.

225255522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20537.

The product of its digits is 20000, while the sum is 30.

The square root of 225255522 is about 15008.5149831687. The cubic root of 225255522 is about 608.4503548861.

The spelling of 225255522 in words is "two hundred twenty-five million, two hundred fifty-five thousand, five hundred twenty-two".