225873265 has 4 divisors (see below), whose sum is σ = 271047924. Its totient is φ = 180698608.

The previous prime is 225873259. The next prime is 225873283. The reversal of 225873265 is 562378522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562378522 = 2 ⋅281189261.

It can be written as a sum of positive squares in 2 ways, for example, as 64786401 + 161086864 = 8049^2 + 12692^2 .

It is a cyclic number.

It is not a de Polignac number, because 225873265 - 2⁵ = 225873233 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

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, 22587322 + ... + 22587331.

It is an arithmetic number, because the mean of its divisors is an integer number (67761981).

Almost surely, 2^225873265 is an apocalyptic number.

It is an amenable number.

225873265 is a deficient number, since it is larger than the sum of its proper divisors (45174659).

225873265 is an equidigital number, since it uses as much as digits as its factorization.

225873265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45174658.

The product of its digits is 201600, while the sum is 40.

The square root of 225873265 is about 15029.0806438717. The cubic root of 225873265 is about 609.0060539931.

It can be divided in two parts, 22587 and 3265, that added together give a palindrome (25852).

The spelling of 225873265 in words is "two hundred twenty-five million, eight hundred seventy-three thousand, two hundred sixty-five".