85520271 has 4 divisors (see below), whose sum is σ = 114027032. Its totient is φ = 57013512.

The previous prime is 85520269. The next prime is 85520291. The reversal of 85520271 is 17202558.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85520271 - 2¹ = 85520269 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 (85520221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14253376 + ... + 14253381.

It is an arithmetic number, because the mean of its divisors is an integer number (28506758).

Almost surely, 2^85520271 is an apocalyptic number.

85520271 is a deficient number, since it is larger than the sum of its proper divisors (28506761).

85520271 is a wasteful number, since it uses less digits than its factorization.

85520271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28506760.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 85520271 is about 9247.7170696340. The cubic root of 85520271 is about 440.5782188049.

The spelling of 85520271 in words is "eighty-five million, five hundred twenty thousand, two hundred seventy-one".