255834287 has 2 divisors, whose sum is σ = 255834288. Its totient is φ = 255834286.

The previous prime is 255834217. The next prime is 255834331. The reversal of 255834287 is 782438552.

It is an a-pointer prime, because the next prime (255834331) can be obtained adding 255834287 to its sum of digits (44).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255834287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255834217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127917143 + 127917144.

It is an arithmetic number, because the mean of its divisors is an integer number (127917144).

Almost surely, 2^255834287 is an apocalyptic number.

255834287 is a deficient number, since it is larger than the sum of its proper divisors (1).

255834287 is an equidigital number, since it uses as much as digits as its factorization.

255834287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 537600, while the sum is 44.

The square root of 255834287 is about 15994.8206304416. The cubic root of 255834287 is about 634.8233844485.

The spelling of 255834287 in words is "two hundred fifty-five million, eight hundred thirty-four thousand, two hundred eighty-seven".