225453568 has 20 divisors (see below), whose sum is σ = 450467820. Its totient is φ = 112726528.

The previous prime is 225453559. The next prime is 225453581. The reversal of 225453568 is 865354522.

It is a happy number.

It is a super-2 number, since 2×225453568² = 101658622647861248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225453568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219658 + ... + 220681.

It is an arithmetic number, because the mean of its divisors is an integer number (22523391).

Almost surely, 2^225453568 is an apocalyptic number.

It is an amenable number.

225453568 is a deficient number, since it is larger than the sum of its proper divisors (225014252).

225453568 is an frugal number, since it uses more digits than its factorization.

225453568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440357 (or 440341 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The square root of 225453568 is about 15015.1113215987. Note that the first 3 decimals coincide. The cubic root of 225453568 is about 608.6286203807.

The spelling of 225453568 in words is "two hundred twenty-five million, four hundred fifty-three thousand, five hundred sixty-eight".