859055 has 4 divisors (see below), whose sum is σ = 1030872. Its totient is φ = 687240.

The previous prime is 859051. The next prime is 859057. The reversal of 859055 is 550958.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 859055 - 2² = 859051 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85901 + ... + 85910.

It is an arithmetic number, because the mean of its divisors is an integer number (257718).

2⁸⁵⁹⁰⁵⁵ is an apocalyptic number.

859055 is a deficient number, since it is larger than the sum of its proper divisors (171817).

859055 is a wasteful number, since it uses less digits than its factorization.

859055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171816.

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

The square root of 859055 is about 926.8521996521. The cubic root of 859055 is about 95.0620093773.

The spelling of 859055 in words is "eight hundred fifty-nine thousand, fifty-five".