85256173 has 8 divisors (see below), whose sum is σ = 95022720. Its totient is φ = 76017600.

The previous prime is 85256159. The next prime is 85256191. The reversal of 85256173 is 37165258.

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

It is a cyclic number.

It is not a de Polignac number, because 85256173 - 2⁵ = 85256141 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 (85256153) 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, 131653 + ... + 132298.

It is an arithmetic number, because the mean of its divisors is an integer number (11877840).

Almost surely, 2^85256173 is an apocalyptic number.

It is an amenable number.

85256173 is a deficient number, since it is larger than the sum of its proper divisors (9766547).

85256173 is a wasteful number, since it uses less digits than its factorization.

85256173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263987.

The product of its digits is 50400, while the sum is 37.

The square root of 85256173 is about 9233.4269369503. The cubic root of 85256173 is about 440.1242297288.

The spelling of 85256173 in words is "eighty-five million, two hundred fifty-six thousand, one hundred seventy-three".