255825755791 has 2 divisors, whose sum is σ = 255825755792. Its totient is φ = 255825755790.

The previous prime is 255825755767. The next prime is 255825755803. The reversal of 255825755791 is 197557528552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255825755791 - 2³³ = 247235821199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255820755791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127912877895 + 127912877896.

It is an arithmetic number, because the mean of its divisors is an integer number (127912877896).

Almost surely, 2^255825755791 is an apocalyptic number.

255825755791 is a deficient number, since it is larger than the sum of its proper divisors (1).

255825755791 is an equidigital number, since it uses as much as digits as its factorization.

255825755791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100000, while the sum is 61.

The spelling of 255825755791 in words is "two hundred fifty-five billion, eight hundred twenty-five million, seven hundred fifty-five thousand, seven hundred ninety-one".