225043072 has 16 divisors (see below), whose sum is σ = 448328250. Its totient is φ = 112521472.

The previous prime is 225043069. The next prime is 225043073. The reversal of 225043072 is 270340522.

It can be written as a sum of positive squares in only one way, i.e., 136983616 + 88059456 = 11704^2 + 9384^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (225043073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 878947 + ... + 879202.

Almost surely, 2^225043072 is an apocalyptic number.

It is an amenable number.

225043072 is a deficient number, since it is larger than the sum of its proper divisors (223285178).

225043072 is an equidigital number, since it uses as much as digits as its factorization.

225043072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758163 (or 1758151 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 225043072 is about 15001.4356646289. The cubic root of 225043072 is about 608.2590078373.

Adding to 225043072 its reverse (270340522), we get a palindrome (495383594).

The spelling of 225043072 in words is "two hundred twenty-five million, forty-three thousand, seventy-two".