225505222 has 16 divisors (see below), whose sum is σ = 349719552. Its totient is φ = 108943560.

The previous prime is 225505219. The next prime is 225505261. The reversal of 225505222 is 222505522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42573 + ... + 47575.

It is an arithmetic number, because the mean of its divisors is an integer number (21857472).

Almost surely, 2^225505222 is an apocalyptic number.

225505222 is a deficient number, since it is larger than the sum of its proper divisors (124214330).

225505222 is a wasteful number, since it uses less digits than its factorization.

225505222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5763.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 225505222 is about 15016.8312902556. The cubic root of 225505222 is about 608.6750980988.

It can be divided in two parts, 22550 and 5222, that added together give a palindrome (27772).

The spelling of 225505222 in words is "two hundred twenty-five million, five hundred five thousand, two hundred twenty-two".