225404226 has 12 divisors (see below), whose sum is σ = 488375862. Its totient is φ = 75134736.

The previous prime is 225404219. The next prime is 225404243. The reversal of 225404226 is 622404522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 213189201 + 12215025 = 14601^2 + 3495^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 225404226.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6261211 + ... + 6261246.

Almost surely, 2^225404226 is an apocalyptic number.

225404226 is an abundant number, since it is smaller than the sum of its proper divisors (262971636).

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

225404226 is a wasteful number, since it uses less digits than its factorization.

225404226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12522465 (or 12522462 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 225404226 is about 15013.4681536279. The cubic root of 225404226 is about 608.5842163455.

Adding to 225404226 its reverse (622404522), we get a palindrome (847808748).

The spelling of 225404226 in words is "two hundred twenty-five million, four hundred four thousand, two hundred twenty-six".