225165805203 has 4 divisors (see below), whose sum is σ = 300221073608. Its totient is φ = 150110536800.

The previous prime is 225165805177. The next prime is 225165805229. The reversal of 225165805203 is 302508561522.

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

It is an interprime number because it is at equal distance from previous prime (225165805177) and next prime (225165805229).

It is not a de Polignac number, because 225165805203 - 2⁸ = 225165804947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225165805003) 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, 37527634198 + ... + 37527634203.

It is an arithmetic number, because the mean of its divisors is an integer number (75055268402).

Almost surely, 2^225165805203 is an apocalyptic number.

225165805203 is a deficient number, since it is larger than the sum of its proper divisors (75055268405).

225165805203 is an equidigital number, since it uses as much as digits as its factorization.

225165805203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75055268404.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 225165805203 in words is "two hundred twenty-five billion, one hundred sixty-five million, eight hundred five thousand, two hundred three".