225404522415203 has 4 divisors (see below), whose sum is σ = 225784631222568. Its totient is φ = 225024413607840.

The previous prime is 225404522415143. The next prime is 225404522415251. The reversal of 225404522415203 is 302514225404522.

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 225404522415203 - 2⁶ = 225404522415139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225404522415403) 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, 190054402793 + ... + 190054403978.

It is an arithmetic number, because the mean of its divisors is an integer number (56446157805642).

Almost surely, 2^{225404522415203} is an apocalyptic number.

225404522415203 is a deficient number, since it is larger than the sum of its proper divisors (380108807365).

225404522415203 is an equidigital number, since it uses as much as digits as its factorization.

225404522415203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380108807364.

The product of its (nonzero) digits is 768000, while the sum is 41.

Adding to 225404522415203 its reverse (302514225404522), we get a palindrome (527918747819725).

The spelling of 225404522415203 in words is "two hundred twenty-five trillion, four hundred four billion, five hundred twenty-two million, four hundred fifteen thousand, two hundred three".