225055707209 has 2 divisors, whose sum is σ = 225055707210. Its totient is φ = 225055707208.

The previous prime is 225055707167. The next prime is 225055707257. The reversal of 225055707209 is 902707550522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223048398400 + 2007308809 = 472280^2 + 44803^2 .

It is a cyclic number.

It is not a de Polignac number, because 225055707209 - 2³⁶ = 156336230473 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 225055707209.

It is not a weakly prime, because it can be changed into another prime (225055707109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112527853604 + 112527853605.

It is an arithmetic number, because the mean of its divisors is an integer number (112527853605).

Almost surely, 2^225055707209 is an apocalyptic number.

It is an amenable number.

225055707209 is a deficient number, since it is larger than the sum of its proper divisors (1).

225055707209 is an equidigital number, since it uses as much as digits as its factorization.

225055707209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 225055707209 in words is "two hundred twenty-five billion, fifty-five million, seven hundred seven thousand, two hundred nine".