225431044 has 6 divisors (see below), whose sum is σ = 394504334. Its totient is φ = 112715520.

The previous prime is 225431023. The next prime is 225431077. The reversal of 225431044 is 440134522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 176570944 + 48860100 = 13288^2 + 6990^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28178877 + ... + 28178884.

Almost surely, 2^225431044 is an apocalyptic number.

It is an amenable number.

225431044 is a deficient number, since it is larger than the sum of its proper divisors (169073290).

225431044 is a wasteful number, since it uses less digits than its factorization.

225431044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56357765 (or 56357763 counting only the distinct ones).

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

The square root of 225431044 is about 15014.3612584752. The cubic root of 225431044 is about 608.6083513031.

Adding to 225431044 its reverse (440134522), we get a palindrome (665565566).

The spelling of 225431044 in words is "two hundred twenty-five million, four hundred thirty-one thousand, forty-four".