255808087 has 2 divisors, whose sum is σ = 255808088. Its totient is φ = 255808086.

The previous prime is 255808081. The next prime is 255808097. The reversal of 255808087 is 780808552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255808087 - 2³ = 255808079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255808081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127904043 + 127904044.

It is an arithmetic number, because the mean of its divisors is an integer number (127904044).

Almost surely, 2^255808087 is an apocalyptic number.

255808087 is a deficient number, since it is larger than the sum of its proper divisors (1).

255808087 is an equidigital number, since it uses as much as digits as its factorization.

255808087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 179200, while the sum is 43.

The square root of 255808087 is about 15994.0015943478. The cubic root of 255808087 is about 634.8017129456.

The spelling of 255808087 in words is "two hundred fifty-five million, eight hundred eight thousand, eighty-seven".