225661130 has 32 divisors (see below), whose sum is σ = 421424640. Its totient is φ = 86935680.

The previous prime is 225661129. The next prime is 225661153. The reversal of 225661130 is 31166522.

225661130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 225661130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28907 + ... + 35873.

It is an arithmetic number, because the mean of its divisors is an integer number (13169520).

Almost surely, 2^225661130 is an apocalyptic number.

225661130 is a deficient number, since it is larger than the sum of its proper divisors (195763510).

225661130 is a wasteful number, since it uses less digits than its factorization.

225661130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7094.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 225661130 is about 15022.0215017820. The cubic root of 225661130 is about 608.8153394273.

The spelling of 225661130 in words is "two hundred twenty-five million, six hundred sixty-one thousand, one hundred thirty".