65085 has 8 divisors (see below), whose sum is σ = 104160. Its totient is φ = 34704.

The previous prime is 65071. The next prime is 65089. The reversal of 65085 is 58056.

65085 = 81² + 82² + ... + 89².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65085 - 2⁵ = 65053 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155 + ... + 2184.

It is an arithmetic number, because the mean of its divisors is an integer number (13020).

2⁶⁵⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

65085 is a deficient number, since it is larger than the sum of its proper divisors (39075).

65085 is a wasteful number, since it uses less digits than its factorization.

65085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 65085 is about 255.1176199325. The cubic root of 65085 is about 40.2247761923.

The spelling of 65085 in words is "sixty-five thousand, eighty-five".