65567065 has 4 divisors (see below), whose sum is σ = 78680484. Its totient is φ = 52453648.

The previous prime is 65567063. The next prime is 65567087. The reversal of 65567065 is 56076556.

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 26666896 + 38900169 = 5164^2 + 6237^2 .

It is a cyclic number.

It is not a de Polignac number, because 65567065 - 2¹ = 65567063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65567063) 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, 6556702 + ... + 6556711.

It is an arithmetic number, because the mean of its divisors is an integer number (19670121).

Almost surely, 2^65567065 is an apocalyptic number.

It is an amenable number.

65567065 is a deficient number, since it is larger than the sum of its proper divisors (13113419).

65567065 is a wasteful number, since it uses less digits than its factorization.

65567065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13113418.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 65567065 is about 8097.3492576275. The cubic root of 65567065 is about 403.2384294312.

The spelling of 65567065 in words is "sixty-five million, five hundred sixty-seven thousand, sixty-five".