85011011 has 4 divisors (see below), whose sum is σ = 85164192. Its totient is φ = 84857832.

The previous prime is 85011001. The next prime is 85011019. The reversal of 85011011 is 11011058.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85011011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85011019) 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, 75755 + ... + 76868.

It is an arithmetic number, because the mean of its divisors is an integer number (21291048).

Almost surely, 2^85011011 is an apocalyptic number.

85011011 is a deficient number, since it is larger than the sum of its proper divisors (153181).

85011011 is a wasteful number, since it uses less digits than its factorization.

85011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153180.

The product of its (nonzero) digits is 40, while the sum is 17.

The square root of 85011011 is about 9220.1415932728. The cubic root of 85011011 is about 439.7019520790.

Adding to 85011011 its reverse (11011058), we get a palindrome (96022069).

The spelling of 85011011 in words is "eighty-five million, eleven thousand, eleven".