755256991 has 2 divisors, whose sum is σ = 755256992. Its totient is φ = 755256990.

The previous prime is 755256989. The next prime is 755257021. The reversal of 755256991 is 199652557.

755256991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 755256991 - 2¹ = 755256989 is a prime.

Together with 755256989, 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 (755256961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377628495 + 377628496.

It is an arithmetic number, because the mean of its divisors is an integer number (377628496).

Almost surely, 2^755256991 is an apocalyptic number.

755256991 is a deficient number, since it is larger than the sum of its proper divisors (1).

755256991 is an equidigital number, since it uses as much as digits as its factorization.

755256991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 850500, while the sum is 49.

The square root of 755256991 is about 27481.9393602417. The cubic root of 755256991 is about 910.6781528740.

The spelling of 755256991 in words is "seven hundred fifty-five million, two hundred fifty-six thousand, nine hundred ninety-one".