225913856 has 44 divisors (see below), whose sum is σ = 516138768. Its totient is φ = 96817152.

The previous prime is 225913847. The next prime is 225913879. The reversal of 225913856 is 658319522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8591 + ... + 22926.

Almost surely, 2^225913856 is an apocalyptic number.

It is an amenable number.

225913856 is an abundant number, since it is smaller than the sum of its proper divisors (290224912).

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

225913856 is an equidigital number, since it uses as much as digits as its factorization.

225913856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31544 (or 31526 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 225913856 is about 15030.4309984777. The cubic root of 225913856 is about 609.0425326855.

The spelling of 225913856 in words is "two hundred twenty-five million, nine hundred thirteen thousand, eight hundred fifty-six".