225500203 has 4 divisors (see below), whose sum is σ = 225913000. Its totient is φ = 225087408.

The previous prime is 225500173. The next prime is 225500221. The reversal of 225500203 is 302005522.

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 225500203 - 2⁹ = 225499691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225500243) 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, 205578 + ... + 206671.

It is an arithmetic number, because the mean of its divisors is an integer number (56478250).

Almost surely, 2^225500203 is an apocalyptic number.

225500203 is a deficient number, since it is larger than the sum of its proper divisors (412797).

225500203 is an equidigital number, since it uses as much as digits as its factorization.

225500203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412796.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 225500203 is about 15016.6641768403. The cubic root of 225500203 is about 608.6705823674.

Adding to 225500203 its reverse (302005522), we get a palindrome (527505725).

The spelling of 225500203 in words is "two hundred twenty-five million, five hundred thousand, two hundred three".