225933618 has 16 divisors (see below), whose sum is σ = 464080320. Its totient is φ = 73275696.

The previous prime is 225933563. The next prime is 225933619. The reversal of 225933618 is 816339522.

It is not an unprimeable number, because it can be changed into a prime (225933619) 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, 508638 + ... + 509081.

It is an arithmetic number, because the mean of its divisors is an integer number (29005020).

Almost surely, 2^225933618 is an apocalyptic number.

225933618 is an abundant number, since it is smaller than the sum of its proper divisors (238146702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225933618 is a wasteful number, since it uses less digits than its factorization.

225933618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017761.

The product of its digits is 77760, while the sum is 39.

The square root of 225933618 is about 15031.0883837465. The cubic root of 225933618 is about 609.0602909996.

The spelling of 225933618 in words is "two hundred twenty-five million, nine hundred thirty-three thousand, six hundred eighteen".