85506711 has 8 divisors (see below), whose sum is σ = 117686784. Its totient is φ = 55165560.

The previous prime is 85506697. The next prime is 85506731. The reversal of 85506711 is 11760558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85506711 - 2⁹ = 85506199 is a prime.

It is a super-2 number, since 2×85506711² = 14622795252075042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85506731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459621 + ... + 459806.

It is an arithmetic number, because the mean of its divisors is an integer number (14710848).

Almost surely, 2^85506711 is an apocalyptic number.

85506711 is a deficient number, since it is larger than the sum of its proper divisors (32180073).

85506711 is a wasteful number, since it uses less digits than its factorization.

85506711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919461.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 85506711 is about 9246.9838866519. The cubic root of 85506711 is about 440.5549317083.

The spelling of 85506711 in words is "eighty-five million, five hundred six thousand, seven hundred eleven".