559985 has 4 divisors (see below), whose sum is σ = 671988. Its totient is φ = 447984.

The previous prime is 559973. The next prime is 559991. The reversal of 559985 is 589955.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 589955 = 5 ⋅117991.

It can be written as a sum of positive squares in 2 ways, for example, as 418609 + 141376 = 647^2 + 376^2 .

It is a cyclic number.

It is not a de Polignac number, because 559985 - 2¹⁴ = 543601 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 559985.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55994 + ... + 56003.

It is an arithmetic number, because the mean of its divisors is an integer number (167997).

2⁵⁵⁹⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

559985 is a deficient number, since it is larger than the sum of its proper divisors (112003).

559985 is a wasteful number, since it uses less digits than its factorization.

559985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112002.

The product of its digits is 81000, while the sum is 41.

The square root of 559985 is about 748.3214549911. The cubic root of 559985 is about 82.4249700458.

It can be divided in two parts, 5 and 59985, that multiplied together give a triangular number (299925 = T₇₇₄).

The spelling of 559985 in words is "five hundred fifty-nine thousand, nine hundred eighty-five".