65436065 has 4 divisors (see below), whose sum is σ = 78523284. Its totient is φ = 52348848.

The previous prime is 65436053. The next prime is 65436073. The reversal of 65436065 is 56063456.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38738176 + 26697889 = 6224^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 65436065 - 2¹² = 65431969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6543602 + ... + 6543611.

It is an arithmetic number, because the mean of its divisors is an integer number (19630821).

Almost surely, 2^65436065 is an apocalyptic number.

It is an amenable number.

65436065 is a deficient number, since it is larger than the sum of its proper divisors (13087219).

65436065 is a wasteful number, since it uses less digits than its factorization.

65436065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13087218.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 65436065 is about 8089.2561462720. The cubic root of 65436065 is about 402.9696997294.

The spelling of 65436065 in words is "sixty-five million, four hundred thirty-six thousand, sixty-five".