225804644220 has 48 divisors (see below), whose sum is σ = 633122800128. Its totient is φ = 60131734080.

The previous prime is 225804644209. The next prime is 225804644231. The reversal of 225804644220 is 22446408522.

225804644220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (225804644209) and next prime (225804644231).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2544696 + ... + 2631935.

It is an arithmetic number, because the mean of its divisors is an integer number (13190058336).

Almost surely, 2^225804644220 is an apocalyptic number.

225804644220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225804644220 is an abundant number, since it is smaller than the sum of its proper divisors (407318155908).

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

225804644220 is a wasteful number, since it uses less digits than its factorization.

225804644220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177370 (or 5177368 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 39.

The spelling of 225804644220 in words is "two hundred twenty-five billion, eight hundred four million, six hundred forty-four thousand, two hundred twenty".