225184218 has 32 divisors (see below), whose sum is σ = 527264640. Its totient is φ = 62768640.

The previous prime is 225184189. The next prime is 225184231. The reversal of 225184218 is 812481522.

225184218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 63663 + ... + 67106.

It is an arithmetic number, because the mean of its divisors is an integer number (16477020).

Almost surely, 2^225184218 is an apocalyptic number.

225184218 is an abundant number, since it is smaller than the sum of its proper divisors (302080422).

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

225184218 is a wasteful number, since it uses less digits than its factorization.

225184218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130822.

The product of its digits is 10240, while the sum is 33.

The square root of 225184218 is about 15006.1393436153. The cubic root of 225184218 is about 608.3861470296.

The spelling of 225184218 in words is "two hundred twenty-five million, one hundred eighty-four thousand, two hundred eighteen".