85025171 has 32 divisors (see below), whose sum is σ = 113011200. Its totient is φ = 61966080.

The previous prime is 85025167. The next prime is 85025191. The reversal of 85025171 is 17152058.

It is not a de Polignac number, because 85025171 - 2² = 85025167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85025131) 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 31 ways as a sum of consecutive naturals, for example, 129881 + ... + 130533.

It is an arithmetic number, because the mean of its divisors is an integer number (3531600).

Almost surely, 2^85025171 is an apocalyptic number.

85025171 is a deficient number, since it is larger than the sum of its proper divisors (27986029).

85025171 is a wasteful number, since it uses less digits than its factorization.

85025171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 85025171 is about 9220.9094453855. The cubic root of 85025171 is about 439.7263639519.

The spelling of 85025171 in words is "eighty-five million, twenty-five thousand, one hundred seventy-one".