285059 has 4 divisors (see below), whose sum is σ = 286704. Its totient is φ = 283416.

The previous prime is 285049. The next prime is 285071. The reversal of 285059 is 950582.

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

It is a cyclic number.

It is not a de Polignac number, because 285059 - 2⁸ = 284803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527 + ... + 920.

It is an arithmetic number, because the mean of its divisors is an integer number (71676).

2²⁸⁵⁰⁵⁹ is an apocalyptic number.

285059 is a deficient number, since it is larger than the sum of its proper divisors (1645).

285059 is a wasteful number, since it uses less digits than its factorization.

285059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644.

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

The square root of 285059 is about 533.9091683049. The cubic root of 285059 is about 65.8129845065.

The spelling of 285059 in words is "two hundred eighty-five thousand, fifty-nine".