225494218 has 16 divisors (see below), whose sum is σ = 340899840. Its totient is φ = 111864400.

The previous prime is 225494207. The next prime is 225494221. The reversal of 225494218 is 812494522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274248 + ... + 275068.

It is an arithmetic number, because the mean of its divisors is an integer number (21306240).

Almost surely, 2^225494218 is an apocalyptic number.

225494218 is a deficient number, since it is larger than the sum of its proper divisors (115405622).

225494218 is a wasteful number, since it uses less digits than its factorization.

225494218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733.

The product of its digits is 46080, while the sum is 37.

The square root of 225494218 is about 15016.4648969057. The cubic root of 225494218 is about 608.6651974120.

The spelling of 225494218 in words is "two hundred twenty-five million, four hundred ninety-four thousand, two hundred eighteen".