225665710403 has 4 divisors (see below), whose sum is σ = 257903669040. Its totient is φ = 193427751768.

The previous prime is 225665710363. The next prime is 225665710433. The reversal of 225665710403 is 304017566522.

225665710403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 225665710403 - 2¹² = 225665706307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225665710433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16118979308 + ... + 16118979321.

It is an arithmetic number, because the mean of its divisors is an integer number (64475917260).

Almost surely, 2^225665710403 is an apocalyptic number.

225665710403 is a deficient number, since it is larger than the sum of its proper divisors (32237958637).

225665710403 is an equidigital number, since it uses as much as digits as its factorization.

225665710403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32237958636.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 225665710403 in words is "two hundred twenty-five billion, six hundred sixty-five million, seven hundred ten thousand, four hundred three".