255403091 has 2 divisors, whose sum is σ = 255403092. Its totient is φ = 255403090.

The previous prime is 255403081. The next prime is 255403151. The reversal of 255403091 is 190304552.

255403091 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 a de Polignac number, because none of the positive numbers 2^k-255403091 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255403021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127701545 + 127701546.

It is an arithmetic number, because the mean of its divisors is an integer number (127701546).

Almost surely, 2^255403091 is an apocalyptic number.

255403091 is a deficient number, since it is larger than the sum of its proper divisors (1).

255403091 is an equidigital number, since it uses as much as digits as its factorization.

255403091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 255403091 is about 15981.3357076309. The cubic root of 255403091 is about 634.4665294449.

The spelling of 255403091 in words is "two hundred fifty-five million, four hundred three thousand, ninety-one".