225909868 has 12 divisors (see below), whose sum is σ = 395911152. Its totient is φ = 112792400.

The previous prime is 225909851. The next prime is 225909881. The reversal of 225909868 is 868909522.

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, 37480 + ... + 43087.

It is an arithmetic number, because the mean of its divisors is an integer number (32992596).

Almost surely, 2^225909868 is an apocalyptic number.

It is an amenable number.

225909868 is a deficient number, since it is larger than the sum of its proper divisors (170001284).

225909868 is a wasteful number, since it uses less digits than its factorization.

225909868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81272 (or 81270 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 225909868 is about 15030.2983336992. The cubic root of 225909868 is about 609.0389489067.

The spelling of 225909868 in words is "two hundred twenty-five million, nine hundred nine thousand, eight hundred sixty-eight".