65564267 has 2 divisors, whose sum is σ = 65564268. Its totient is φ = 65564266.

The previous prime is 65564243. The next prime is 65564297. The reversal of 65564267 is 76246556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65564267 - 2⁸ = 65564011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65564297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32782133 + 32782134.

It is an arithmetic number, because the mean of its divisors is an integer number (32782134).

Almost surely, 2^65564267 is an apocalyptic number.

65564267 is a deficient number, since it is larger than the sum of its proper divisors (1).

65564267 is an equidigital number, since it uses as much as digits as its factorization.

65564267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 41.

The square root of 65564267 is about 8097.1764831946. The cubic root of 65564267 is about 403.2326934357.

The spelling of 65564267 in words is "sixty-five million, five hundred sixty-four thousand, two hundred sixty-seven".