225165884429 has 2 divisors, whose sum is σ = 225165884430. Its totient is φ = 225165884428.

The previous prime is 225165884401. The next prime is 225165884467. The reversal of 225165884429 is 924488561522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128040161929 + 97125722500 = 357827^2 + 311650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225165884429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225165884329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112582942214 + 112582942215.

It is an arithmetic number, because the mean of its divisors is an integer number (112582942215).

Almost surely, 2^225165884429 is an apocalyptic number.

It is an amenable number.

225165884429 is a deficient number, since it is larger than the sum of its proper divisors (1).

225165884429 is an equidigital number, since it uses as much as digits as its factorization.

225165884429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11059200, while the sum is 56.

The spelling of 225165884429 in words is "two hundred twenty-five billion, one hundred sixty-five million, eight hundred eighty-four thousand, four hundred twenty-nine".