2255448721 has 2 divisors, whose sum is σ = 2255448722. Its totient is φ = 2255448720.

The previous prime is 2255448703. The next prime is 2255448731. The reversal of 2255448721 is 1278445522.

It is a happy number.

2255448721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2026350225 + 229098496 = 45015^2 + 15136^2 .

It is a cyclic number.

It is not a de Polignac number, because 2255448721 - 2¹⁹ = 2254924433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2255448731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127724360 + 1127724361.

It is an arithmetic number, because the mean of its divisors is an integer number (1127724361).

Almost surely, 2^2255448721 is an apocalyptic number.

It is an amenable number.

2255448721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255448721 is an equidigital number, since it uses as much as digits as its factorization.

2255448721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 179200, while the sum is 40.

The square root of 2255448721 is about 47491.5647352243. The cubic root of 2255448721 is about 1311.4275991291.

The spelling of 2255448721 in words is "two billion, two hundred fifty-five million, four hundred forty-eight thousand, seven hundred twenty-one".