85211 has 12 divisors (see below), whose sum is σ = 103968. Its totient is φ = 69552.

The previous prime is 85201. The next prime is 85213. The reversal of 85211 is 11258.

It is not a de Polignac number, because 85211 - 2⁶ = 85147 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 85211.

It is not an unprimeable number, because it can be changed into a prime (85213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1790 + ... + 1836.

It is an arithmetic number, because the mean of its divisors is an integer number (8664).

2⁸⁵²¹¹ is an apocalyptic number.

85211 is a deficient number, since it is larger than the sum of its proper divisors (18757).

85211 is a wasteful number, since it uses less digits than its factorization.

85211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 91 counting only the distinct ones).

The product of its digits is 80, while the sum is 17.

The square root of 85211 is about 291.9092324679. The cubic root of 85211 is about 44.0046482693.

Adding to 85211 its reverse (11258), we get a palindrome (96469).

The spelling of 85211 in words is "eighty-five thousand, two hundred eleven".