85523711 has 16 divisors (see below), whose sum is σ = 106204224. Its totient is φ = 67060224.

The previous prime is 85523701. The next prime is 85523717. The reversal of 85523711 is 11732558.

It is not a de Polignac number, because 85523711 - 2¹⁰ = 85522687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85523717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6125 + ... + 14441.

It is an arithmetic number, because the mean of its divisors is an integer number (6637764).

Almost surely, 2^85523711 is an apocalyptic number.

85523711 is a deficient number, since it is larger than the sum of its proper divisors (20680513).

85523711 is a wasteful number, since it uses less digits than its factorization.

85523711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8450.

The product of its digits is 8400, while the sum is 32.

The square root of 85523711 is about 9247.9030596130. The cubic root of 85523711 is about 440.5841260544.

The spelling of 85523711 in words is "eighty-five million, five hundred twenty-three thousand, seven hundred eleven".