225663044 has 6 divisors (see below), whose sum is σ = 394910334. Its totient is φ = 112831520.

The previous prime is 225663041. The next prime is 225663047. The reversal of 225663044 is 440366522.

It is an interprime number because it is at equal distance from previous prime (225663041) and next prime (225663047).

It can be written as a sum of positive squares in only one way, i.e., 209902144 + 15760900 = 14488^2 + 3970^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225663044.

It is not an unprimeable number, because it can be changed into a prime (225663041) 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, 28207877 + ... + 28207884.

It is an arithmetic number, because the mean of its divisors is an integer number (65818389).

Almost surely, 2^225663044 is an apocalyptic number.

It is an amenable number.

225663044 is a deficient number, since it is larger than the sum of its proper divisors (169247290).

225663044 is a wasteful number, since it uses less digits than its factorization.

225663044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56415765 (or 56415763 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 225663044 is about 15022.0852081194. The cubic root of 225663044 is about 608.8170606945.

The spelling of 225663044 in words is "two hundred twenty-five million, six hundred sixty-three thousand, forty-four".