65432271 has 4 divisors (see below), whose sum is σ = 87243032. Its totient is φ = 43621512.

The previous prime is 65432249. The next prime is 65432281. The reversal of 65432271 is 17223456.

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

It is not a de Polignac number, because 65432271 - 2¹¹ = 65430223 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 (65432221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10905376 + ... + 10905381.

It is an arithmetic number, because the mean of its divisors is an integer number (21810758).

Almost surely, 2^65432271 is an apocalyptic number.

65432271 is a deficient number, since it is larger than the sum of its proper divisors (21810761).

65432271 is a wasteful number, since it uses less digits than its factorization.

65432271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21810760.

The product of its digits is 10080, while the sum is 30.

The square root of 65432271 is about 8089.0216342893. The cubic root of 65432271 is about 402.9619114830.

It can be divided in two parts, 65432 and 271, that added together give a triangular number (65703 = T₃₆₂).

The spelling of 65432271 in words is "sixty-five million, four hundred thirty-two thousand, two hundred seventy-one".