65271 has 4 divisors (see below), whose sum is σ = 87032. Its totient is φ = 43512.

The previous prime is 65269. The next prime is 65287. The reversal of 65271 is 17256.

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

It is not a de Polignac number, because 65271 - 2¹ = 65269 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65071) 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, 10876 + ... + 10881.

It is an arithmetic number, because the mean of its divisors is an integer number (21758).

2⁶⁵²⁷¹ is an apocalyptic number.

65271 is a deficient number, since it is larger than the sum of its proper divisors (21761).

65271 is a wasteful number, since it uses less digits than its factorization.

65271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21760.

The product of its digits is 420, while the sum is 21.

The square root of 65271 is about 255.4818975975. The cubic root of 65271 is about 40.2630578880.

It can be divided in two parts, 6 and 5271, that multiplied together give a triangular number (31626 = T₂₅₁).

The spelling of 65271 in words is "sixty-five thousand, two hundred seventy-one".