585505 has 4 divisors (see below), whose sum is σ = 702612. Its totient is φ = 468400.

The previous prime is 585503. The next prime is 585517. The reversal of 585505 is 505585.

585505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505585 = 5 ⋅101117.

It can be written as a sum of positive squares in 2 ways, for example, as 117649 + 467856 = 343^2 + 684^2 .

It is not a de Polignac number, because 585505 - 2¹ = 585503 is a prime.

It is a super-2 number, since 2×585505² = 685632210050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (585503) 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, 58546 + ... + 58555.

It is an arithmetic number, because the mean of its divisors is an integer number (175653).

2⁵⁸⁵⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

585505 is a deficient number, since it is larger than the sum of its proper divisors (117107).

585505 is a wasteful number, since it uses less digits than its factorization.

585505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117106.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 585505 is about 765.1829846514. The cubic root of 585505 is about 83.6585249102.

The spelling of 585505 in words is "five hundred eighty-five thousand, five hundred five".