255286091 has 2 divisors, whose sum is σ = 255286092. Its totient is φ = 255286090.

The previous prime is 255286063. The next prime is 255286099. The reversal of 255286091 is 190682552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255286091 - 2⁶ = 255286027 is a prime.

It is not a weakly prime, because it can be changed into another prime (255286099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127643045 + 127643046.

It is an arithmetic number, because the mean of its divisors is an integer number (127643046).

Almost surely, 2^255286091 is an apocalyptic number.

255286091 is a deficient number, since it is larger than the sum of its proper divisors (1).

255286091 is an equidigital number, since it uses as much as digits as its factorization.

255286091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 255286091 is about 15977.6747682509. The cubic root of 255286091 is about 634.3696317373.

The spelling of 255286091 in words is "two hundred fifty-five million, two hundred eighty-six thousand, ninety-one".