4255921919 has 2 divisors, whose sum is σ = 4255921920. Its totient is φ = 4255921918.

The previous prime is 4255921913. The next prime is 4255921921. The reversal of 4255921919 is 9191295524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4255921919 - 2²⁸ = 3987486463 is a prime.

It is a super-2 number, since 2×4255921919² = 36225742761249285122, which contains 22 as substring.

Together with 4255921921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4255921913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2127960959 + 2127960960.

It is an arithmetic number, because the mean of its divisors is an integer number (2127960960).

Almost surely, 2^4255921919 is an apocalyptic number.

4255921919 is a deficient number, since it is larger than the sum of its proper divisors (1).

4255921919 is an equidigital number, since it uses as much as digits as its factorization.

4255921919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 47.

The square root of 4255921919 is about 65237.4272867960. The cubic root of 4255921919 is about 1620.5578933820.

The spelling of 4255921919 in words is "four billion, two hundred fifty-five million, nine hundred twenty-one thousand, nine hundred nineteen".