225504313 has 4 divisors (see below), whose sum is σ = 229326480. Its totient is φ = 221682148.

The previous prime is 225504299. The next prime is 225504359. The reversal of 225504313 is 313405522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225504313 - 2⁹ = 225503801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225504913) 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, 1910995 + ... + 1911112.

It is an arithmetic number, because the mean of its divisors is an integer number (57331620).

Almost surely, 2^225504313 is an apocalyptic number.

It is an amenable number.

225504313 is a deficient number, since it is larger than the sum of its proper divisors (3822167).

225504313 is an equidigital number, since it uses as much as digits as its factorization.

225504313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822166.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 225504313 is about 15016.8010241862. The cubic root of 225504313 is about 608.6742802516.

Adding to 225504313 its reverse (313405522), we get a palindrome (538909835).

The spelling of 225504313 in words is "two hundred twenty-five million, five hundred four thousand, three hundred thirteen".