23565065 has 4 divisors (see below), whose sum is σ = 28278084. Its totient is φ = 18852048.

The previous prime is 23565049. The next prime is 23565067. The reversal of 23565065 is 56056532.

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 7946761 + 15618304 = 2819^2 + 3952^2 .

It is a cyclic number.

It is not a de Polignac number, because 23565065 - 2⁴ = 23565049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23565067) 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, 2356502 + ... + 2356511.

It is an arithmetic number, because the mean of its divisors is an integer number (7069521).

Almost surely, 2^23565065 is an apocalyptic number.

It is an amenable number.

23565065 is a deficient number, since it is larger than the sum of its proper divisors (4713019).

23565065 is an equidigital number, since it uses as much as digits as its factorization.

23565065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4713018.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 23565065 is about 4854.3861609888. The cubic root of 23565065 is about 286.6968231901.

The spelling of 23565065 in words is "twenty-three million, five hundred sixty-five thousand, sixty-five".