85529711 has 4 divisors (see below), whose sum is σ = 85652424. Its totient is φ = 85407000.

The previous prime is 85529683. The next prime is 85529723. The reversal of 85529711 is 11792558.

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 85529711 - 2¹⁰ = 85528687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85529611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60305 + ... + 61706.

It is an arithmetic number, because the mean of its divisors is an integer number (21413106).

Almost surely, 2^85529711 is an apocalyptic number.

85529711 is a deficient number, since it is larger than the sum of its proper divisors (122713).

85529711 is a wasteful number, since it uses less digits than its factorization.

85529711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122712.

The product of its digits is 25200, while the sum is 38.

The square root of 85529711 is about 9248.2274517877. The cubic root of 85529711 is about 440.5944290176.

The spelling of 85529711 in words is "eighty-five million, five hundred twenty-nine thousand, seven hundred eleven".