225006218 has 4 divisors (see below), whose sum is σ = 337509330. Its totient is φ = 112503108.

The previous prime is 225006211. The next prime is 225006239. The reversal of 225006218 is 812600522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 189805729 + 35200489 = 13777^2 + 5933^2 .

It is not an unprimeable number, because it can be changed into a prime (225006211) by changing a digit.

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 as a sum of consecutive naturals, namely, 56251553 + ... + 56251556.

Almost surely, 2^225006218 is an apocalyptic number.

225006218 is a deficient number, since it is larger than the sum of its proper divisors (112503112).

225006218 is a wasteful number, since it uses less digits than its factorization.

225006218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112503111.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 225006218 is about 15000.2072652347. The cubic root of 225006218 is about 608.2258023401.

The spelling of 225006218 in words is "two hundred twenty-five million, six thousand, two hundred eighteen".