855059 has 2 divisors, whose sum is σ = 855060. Its totient is φ = 855058.

The previous prime is 855031. The next prime is 855061. The reversal of 855059 is 950558.

855059 is nontrivially palindromic in base 8.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855059 is a prime.

It is a super-2 number, since 2×855059² = 1462251786962, which contains 22 as substring.

Together with 855061, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (855079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427529 + 427530.

It is an arithmetic number, because the mean of its divisors is an integer number (427530).

2⁸⁵⁵⁰⁵⁹ is an apocalyptic number.

855059 is a deficient number, since it is larger than the sum of its proper divisors (1).

855059 is an equidigital number, since it uses as much as digits as its factorization.

855059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 855059 is about 924.6940034411. The cubic root of 855059 is about 94.9143826957.

The spelling of 855059 in words is "eight hundred fifty-five thousand, fifty-nine".