85000259 has 2 divisors, whose sum is σ = 85000260. Its totient is φ = 85000258.

The previous prime is 85000231. The next prime is 85000273. The reversal of 85000259 is 95200058.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85000259 is a prime.

It is a Chen prime.

85000259 is a modest number, since divided by 259 gives 85 as remainder.

It is not a weakly prime, because it can be changed into another prime (85000219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42500129 + 42500130.

It is an arithmetic number, because the mean of its divisors is an integer number (42500130).

Almost surely, 2^85000259 is an apocalyptic number.

85000259 is a deficient number, since it is larger than the sum of its proper divisors (1).

85000259 is an equidigital number, since it uses as much as digits as its factorization.

85000259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 85000259 is about 9219.5585035293. The cubic root of 85000259 is about 439.6834137953.

The spelling of 85000259 in words is "eighty-five million, two hundred fifty-nine", and thus it is an aban number.