225445444 has 12 divisors (see below), whose sum is σ = 450890944. Its totient is φ = 96619464.

The previous prime is 225445399. The next prime is 225445453. The reversal of 225445444 is 444544522.

225445444 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4025784 + ... + 4025839.

Almost surely, 2^225445444 is an apocalyptic number.

It is an amenable number.

225445444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

225445444 is a wasteful number, since it uses less digits than its factorization.

225445444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051634 (or 8051632 counting only the distinct ones).

The product of its digits is 102400, while the sum is 34.

The square root of 225445444 is about 15014.8407916967. The cubic root of 225445444 is about 608.6213098461.

Adding to 225445444 its reverse (444544522), we get a palindrome (669989966).

The spelling of 225445444 in words is "two hundred twenty-five million, four hundred forty-five thousand, four hundred forty-four".