225655332389 has 2 divisors, whose sum is σ = 225655332390. Its totient is φ = 225655332388.

The previous prime is 225655332317. The next prime is 225655332391. The reversal of 225655332389 is 983233556522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225254652100 + 400680289 = 474610^2 + 20017^2 .

It is a cyclic number.

It is not a de Polignac number, because 225655332389 - 2¹⁶ = 225655266853 is a prime.

Together with 225655332391, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225655332389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225055332389) 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, 112827666194 + 112827666195.

It is an arithmetic number, because the mean of its divisors is an integer number (112827666195).

Almost surely, 2^225655332389 is an apocalyptic number.

It is an amenable number.

225655332389 is a deficient number, since it is larger than the sum of its proper divisors (1).

225655332389 is an equidigital number, since it uses as much as digits as its factorization.

225655332389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664000, while the sum is 53.

The spelling of 225655332389 in words is "two hundred twenty-five billion, six hundred fifty-five million, three hundred thirty-two thousand, three hundred eighty-nine".