225495890 has 16 divisors (see below), whose sum is σ = 407514240. Its totient is φ = 89838000.

The previous prime is 225495883. The next prime is 225495899. The reversal of 225495890 is 98594522.

225495890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225495899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42410 + ... + 47429.

It is an arithmetic number, because the mean of its divisors is an integer number (25469640).

Almost surely, 2^225495890 is an apocalyptic number.

225495890 is a deficient number, since it is larger than the sum of its proper divisors (182018350).

225495890 is a wasteful number, since it uses less digits than its factorization.

225495890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90097.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 225495890 is about 15016.5205690266. The cubic root of 225495890 is about 608.6667017901. Note that the first 3 decimals are identical.

The spelling of 225495890 in words is "two hundred twenty-five million, four hundred ninety-five thousand, eight hundred ninety".