4255830144721 has 2 divisors, whose sum is σ = 4255830144722. Its totient is φ = 4255830144720.

The previous prime is 4255830144701. The next prime is 4255830144847. The reversal of 4255830144721 is 1274410385524.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4072872914496 + 182957230225 = 2018136^2 + 427735^2 .

It is a cyclic number.

It is not a de Polignac number, because 4255830144721 - 2²⁵ = 4255796590289 is a prime.

It is a super-2 number, since 2×4255830144721² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4255830144701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2127915072360 + 2127915072361.

It is an arithmetic number, because the mean of its divisors is an integer number (2127915072361).

Almost surely, 2^{4255830144721} is an apocalyptic number.

It is an amenable number.

4255830144721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4255830144721 is an equidigital number, since it uses as much as digits as its factorization.

4255830144721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1075200, while the sum is 46.

The spelling of 4255830144721 in words is "four trillion, two hundred fifty-five billion, eight hundred thirty million, one hundred forty-four thousand, seven hundred twenty-one".