225208418 has 16 divisors (see below), whose sum is σ = 367353144. Its totient is φ = 103115520.

The previous prime is 225208393. The next prime is 225208427. The reversal of 225208418 is 814802522.

It can be written as a sum of positive squares in 4 ways, for example, as 219839929 + 5368489 = 14827^2 + 2317^2 .

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, 88253 + ... + 90768.

Almost surely, 2^225208418 is an apocalyptic number.

225208418 is a deficient number, since it is larger than the sum of its proper divisors (142144726).

225208418 is a wasteful number, since it uses less digits than its factorization.

225208418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179077.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 225208418 is about 15006.9456585942. The cubic root of 225208418 is about 608.4079401752.

The spelling of 225208418 in words is "two hundred twenty-five million, two hundred eight thousand, four hundred eighteen".