65443265 has 8 divisors (see below), whose sum is σ = 78966888. Its totient is φ = 52064640.

The previous prime is 65443247. The next prime is 65443271. The reversal of 65443265 is 56234456.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4165681 + 61277584 = 2041^2 + 7828^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65443265 - 2¹² = 65439169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35252 + ... + 37061.

It is an arithmetic number, because the mean of its divisors is an integer number (9870861).

Almost surely, 2^65443265 is an apocalyptic number.

It is an amenable number.

65443265 is a deficient number, since it is larger than the sum of its proper divisors (13523623).

65443265 is a wasteful number, since it uses less digits than its factorization.

65443265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72499.

The product of its digits is 86400, while the sum is 35.

The square root of 65443265 is about 8089.7011687701. The cubic root of 65443265 is about 402.9844789159.

The spelling of 65443265 in words is "sixty-five million, four hundred forty-three thousand, two hundred sixty-five".