85571271 has 6 divisors (see below), whose sum is σ = 123602960. Its totient is φ = 57047508.

The previous prime is 85571249. The next prime is 85571273. The reversal of 85571271 is 17217558.

85571271 is a `hidden beast` number, since 85 + 571 + 2 + 7 + 1 = 666.

It is not a de Polignac number, because 85571271 - 2⁶ = 85571207 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 (85571273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4753951 + ... + 4753968.

Almost surely, 2^85571271 is an apocalyptic number.

85571271 is a deficient number, since it is larger than the sum of its proper divisors (38031689).

85571271 is a wasteful number, since it uses less digits than its factorization.

85571271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507925 (or 9507922 counting only the distinct ones).

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

The square root of 85571271 is about 9250.4740959585. The cubic root of 85571271 is about 440.6657809848.

The spelling of 85571271 in words is "eighty-five million, five hundred seventy-one thousand, two hundred seventy-one".