255801128839 has 2 divisors, whose sum is σ = 255801128840. Its totient is φ = 255801128838.

The previous prime is 255801128831. The next prime is 255801128857. The reversal of 255801128839 is 938821108552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255801128839 - 2³ = 255801128831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255801128831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127900564419 + 127900564420.

It is an arithmetic number, because the mean of its divisors is an integer number (127900564420).

Almost surely, 2^255801128839 is an apocalyptic number.

255801128839 is a deficient number, since it is larger than the sum of its proper divisors (1).

255801128839 is an equidigital number, since it uses as much as digits as its factorization.

255801128839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382400, while the sum is 52.

The spelling of 255801128839 in words is "two hundred fifty-five billion, eight hundred one million, one hundred twenty-eight thousand, eight hundred thirty-nine".