225403168 has 24 divisors (see below), whose sum is σ = 448343532. Its totient is φ = 111538176.

The previous prime is 225403147. The next prime is 225403169. The reversal of 225403168 is 861304522.

It can be written as a sum of positive squares in 2 ways, for example, as 204718864 + 20684304 = 14308^2 + 4548^2 .

It is not an unprimeable number, because it can be changed into a prime (225403169) 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 in 3 ways as a sum of consecutive naturals, for example, 33205 + ... + 39412.

Almost surely, 2^225403168 is an apocalyptic number.

It is an amenable number.

225403168 is a deficient number, since it is larger than the sum of its proper divisors (222940364).

225403168 is an equidigital number, since it uses as much as digits as its factorization.

225403168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72724 (or 72716 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 225403168 is about 15013.4329185566. The cubic root of 225403168 is about 608.5832641553.

The spelling of 225403168 in words is "two hundred twenty-five million, four hundred three thousand, one hundred sixty-eight".