225665303 has 4 divisors (see below), whose sum is σ = 225719760. Its totient is φ = 225610848.

The previous prime is 225665287. The next prime is 225665339. The reversal of 225665303 is 303566522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225665303 - 2⁴ = 225665287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225665303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225665003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20450 + ... + 29487.

It is an arithmetic number, because the mean of its divisors is an integer number (56429940).

Almost surely, 2^225665303 is an apocalyptic number.

225665303 is a deficient number, since it is larger than the sum of its proper divisors (54457).

225665303 is an equidigital number, since it uses as much as digits as its factorization.

225665303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54456.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 225665303 is about 15022.1603972265. The cubic root of 225665303 is about 608.8190922089.

The spelling of 225665303 in words is "two hundred twenty-five million, six hundred sixty-five thousand, three hundred three".