225416818 has 16 divisors (see below), whose sum is σ = 369904320. Its totient is φ = 102173200.

The previous prime is 225416803. The next prime is 225416819. The reversal of 225416818 is 818614522.

It is not an unprimeable number, because it can be changed into a prime (225416819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6373 + ... + 22168.

It is an arithmetic number, because the mean of its divisors is an integer number (23119020).

Almost surely, 2^225416818 is an apocalyptic number.

225416818 is a deficient number, since it is larger than the sum of its proper divisors (144487502).

225416818 is a wasteful number, since it uses less digits than its factorization.

225416818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28913.

The product of its digits is 30720, while the sum is 37.

The square root of 225416818 is about 15013.8875045739. The cubic root of 225416818 is about 608.5955488005.

The spelling of 225416818 in words is "two hundred twenty-five million, four hundred sixteen thousand, eight hundred eighteen".