2255170189 has 2 divisors, whose sum is σ = 2255170190. Its totient is φ = 2255170188.

The previous prime is 2255170187. The next prime is 2255170213. The reversal of 2255170189 is 9810715522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1145280964 + 1109889225 = 33842^2 + 33315^2 .

It is a cyclic number.

It is not a de Polignac number, because 2255170189 - 2¹ = 2255170187 is a prime.

Together with 2255170187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2255170187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127585094 + 1127585095.

It is an arithmetic number, because the mean of its divisors is an integer number (1127585095).

Almost surely, 2^2255170189 is an apocalyptic number.

It is an amenable number.

2255170189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255170189 is an equidigital number, since it uses as much as digits as its factorization.

2255170189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 2255170189 is about 47488.6322081401. The cubic root of 2255170189 is about 1311.3736128888.

The spelling of 2255170189 in words is "two billion, two hundred fifty-five million, one hundred seventy thousand, one hundred eighty-nine".