225312244 has 6 divisors (see below), whose sum is σ = 394296434. Its totient is φ = 112656120.

The previous prime is 225312221. The next prime is 225312251. The reversal of 225312244 is 442213522.

It can be written as a sum of positive squares in only one way, i.e., 216384100 + 8928144 = 14710^2 + 2988^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28164027 + ... + 28164034.

Almost surely, 2^225312244 is an apocalyptic number.

It is an amenable number.

225312244 is a deficient number, since it is larger than the sum of its proper divisors (168984190).

225312244 is a wasteful number, since it uses less digits than its factorization.

225312244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56328065 (or 56328063 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 225312244 is about 15010.4045248621. The cubic root of 225312244 is about 608.5014222610.

Adding to 225312244 its reverse (442213522), we get a palindrome (667525766).

The spelling of 225312244 in words is "two hundred twenty-five million, three hundred twelve thousand, two hundred forty-four".