225660007172 has 6 divisors (see below), whose sum is σ = 394905012558. Its totient is φ = 112830003584.

The previous prime is 225660007141. The next prime is 225660007187. The reversal of 225660007172 is 271700066522.

It is a happy number.

225660007172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 162621853696 + 63038153476 = 403264^2 + 251074^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28207500893 + ... + 28207500900.

It is an arithmetic number, because the mean of its divisors is an integer number (65817502093).

Almost surely, 2^225660007172 is an apocalyptic number.

It is an amenable number.

225660007172 is a deficient number, since it is larger than the sum of its proper divisors (169245005386).

225660007172 is a wasteful number, since it uses less digits than its factorization.

225660007172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56415001797 (or 56415001795 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 225660007172 in words is "two hundred twenty-five billion, six hundred sixty million, seven thousand, one hundred seventy-two".