2255274221 has 2 divisors, whose sum is σ = 2255274222. Its totient is φ = 2255274220.

The previous prime is 2255274199. The next prime is 2255274271. The reversal of 2255274221 is 1224725522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2254920196 + 354025 = 47486^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 2255274221 - 2¹⁰ = 2255273197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2255274271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127637110 + 1127637111.

It is an arithmetic number, because the mean of its divisors is an integer number (1127637111).

Almost surely, 2^2255274221 is an apocalyptic number.

It is an amenable number.

2255274221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255274221 is an equidigital number, since it uses as much as digits as its factorization.

2255274221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 32.

The square root of 2255274221 is about 47489.7275313304. The cubic root of 2255274221 is about 1311.3937773274.

Adding to 2255274221 its reverse (1224725522), we get a palindrome (3479999743).

The spelling of 2255274221 in words is "two billion, two hundred fifty-five million, two hundred seventy-four thousand, two hundred twenty-one".