225557056 has 28 divisors (see below), whose sum is σ = 471149680. Its totient is φ = 106842240.

The previous prime is 225557027. The next prime is 225557063. The reversal of 225557056 is 650755522.

It is a happy number.

It is a super-2 number, since 2×225557056² = 101751971022774272, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 91530 + ... + 93961.

Almost surely, 2^225557056 is an apocalyptic number.

It is an amenable number.

225557056 is an abundant number, since it is smaller than the sum of its proper divisors (245592624).

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

225557056 is a wasteful number, since it uses less digits than its factorization.

225557056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185522 (or 185512 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 225557056 is about 15018.5570545242. The cubic root of 225557056 is about 608.7217306449.

The spelling of 225557056 in words is "two hundred twenty-five million, five hundred fifty-seven thousand, fifty-six".