85535 has 4 divisors (see below), whose sum is σ = 102648. Its totient is φ = 68424.

The previous prime is 85531. The next prime is 85549. The reversal of 85535 is 53558.

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 85535 - 2² = 85531 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85531) 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, 8549 + ... + 8558.

It is an arithmetic number, because the mean of its divisors is an integer number (25662).

2⁸⁵⁵³⁵ is an apocalyptic number.

85535 is a deficient number, since it is larger than the sum of its proper divisors (17113).

85535 is a wasteful number, since it uses less digits than its factorization.

85535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17112.

The product of its digits is 3000, while the sum is 26.

The square root of 85535 is about 292.4636729579. The cubic root of 85535 is about 44.0603510680.

It can be divided in two parts, 8553 and 5, that added together give a palindrome (8558).

The spelling of 85535 in words is "eighty-five thousand, five hundred thirty-five".