225256522 has 12 divisors (see below), whose sum is σ = 342025650. Its totient is φ = 111264488.

The previous prime is 225256487. The next prime is 225256531. The reversal of 225256522 is 225652522.

It can be written as a sum of positive squares in only one way, i.e., 215825481 + 9431041 = 14691^2 + 3071^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 5604 + ... + 21952.

Almost surely, 2^225256522 is an apocalyptic number.

225256522 is a deficient number, since it is larger than the sum of its proper divisors (116769128).

225256522 is an equidigital number, since it uses as much as digits as its factorization.

225256522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16517 (or 16434 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 225256522 is about 15008.5482975536. The cubic root of 225256522 is about 608.4512552702.

Subtracting from 225256522 its product of digits (24000), we obtain a palindrome (225232522).

The spelling of 225256522 in words is "two hundred twenty-five million, two hundred fifty-six thousand, five hundred twenty-two".