85500171 has 16 divisors (see below), whose sum is σ = 133334400. Its totient is φ = 53999784.

The previous prime is 85500161. The next prime is 85500227. The reversal of 85500171 is 17100558.

It is not a de Polignac number, because 85500171 - 2²³ = 77111563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (85500161) 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, 82821 + ... + 83846.

It is an arithmetic number, because the mean of its divisors is an integer number (8333400).

Almost surely, 2^85500171 is an apocalyptic number.

85500171 is a deficient number, since it is larger than the sum of its proper divisors (47834229).

85500171 is a wasteful number, since it uses less digits than its factorization.

85500171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166695 (or 166689 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 85500171 is about 9246.6302510698. The cubic root of 85500171 is about 440.5436994409.

The spelling of 85500171 in words is "eighty-five million, five hundred thousand, one hundred seventy-one".