85000511 has 4 divisors (see below), whose sum is σ = 86394024. Its totient is φ = 83607000.

The previous prime is 85000483. The next prime is 85000541. The reversal of 85000511 is 11500058.

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 85000511 - 2¹⁰ = 84999487 is a prime.

It is a super-2 number, since 2×85000511² = 14450173740522242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85000541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696665 + ... + 696786.

It is an arithmetic number, because the mean of its divisors is an integer number (21598506).

Almost surely, 2^85000511 is an apocalyptic number.

85000511 is a deficient number, since it is larger than the sum of its proper divisors (1393513).

85000511 is a wasteful number, since it uses less digits than its factorization.

85000511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393512.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 85000511 is about 9219.5721701172. The cubic root of 85000511 is about 439.6838483042.

Adding to 85000511 its reverse (11500058), we get a palindrome (96500569).

The spelling of 85000511 in words is "eighty-five million, five hundred eleven", and thus it is an aban number.