65275271 has 4 divisors (see below), whose sum is σ = 65518200. Its totient is φ = 65032344.

The previous prime is 65275229. The next prime is 65275283. The reversal of 65275271 is 17257256.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65275271 - 2⁶ = 65275207 is a prime.

It is a super-2 number, since 2×65275271² = 8521722008246882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65275571) 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, 121061 + ... + 121598.

It is an arithmetic number, because the mean of its divisors is an integer number (16379550).

Almost surely, 2^65275271 is an apocalyptic number.

65275271 is a deficient number, since it is larger than the sum of its proper divisors (242929).

65275271 is a wasteful number, since it uses less digits than its factorization.

65275271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242928.

The product of its digits is 29400, while the sum is 35.

The square root of 65275271 is about 8079.3112949063. The cubic root of 65275271 is about 402.6393607159.

The spelling of 65275271 in words is "sixty-five million, two hundred seventy-five thousand, two hundred seventy-one".