85271571 has 48 divisors (see below), whose sum is σ = 158895360. Its totient is φ = 42759360.

The previous prime is 85271561. The next prime is 85271591. The reversal of 85271571 is 17517258.

85271571 is a `hidden beast` number, since 85 + 2 + 7 + 1 + 571 = 666.

It is not a de Polignac number, because 85271571 - 2¹⁹ = 84747283 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85271551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17976 + ... + 22218.

It is an arithmetic number, because the mean of its divisors is an integer number (3310320).

Almost surely, 2^85271571 is an apocalyptic number.

85271571 is a deficient number, since it is larger than the sum of its proper divisors (73623789).

85271571 is a wasteful number, since it uses less digits than its factorization.

85271571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4296 (or 4293 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 85271571 is about 9234.2607175669. The cubic root of 85271571 is about 440.1507248775.

The spelling of 85271571 in words is "eighty-five million, two hundred seventy-one thousand, five hundred seventy-one".