26564065 has 16 divisors (see below), whose sum is σ = 34909056. Its totient is φ = 19244800.

The previous prime is 26564059. The next prime is 26564099. The reversal of 26564065 is 56046562.

It is not a de Polignac number, because 26564065 - 2⁷ = 26563937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26564065.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16329 + ... + 17881.

It is an arithmetic number, because the mean of its divisors is an integer number (2181816).

Almost surely, 2^26564065 is an apocalyptic number.

It is an amenable number.

26564065 is a deficient number, since it is larger than the sum of its proper divisors (8344991).

26564065 is a wasteful number, since it uses less digits than its factorization.

26564065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 26564065 is about 5154.0338570871. The cubic root of 26564065 is about 298.3766576352.

The spelling of 26564065 in words is "twenty-six million, five hundred sixty-four thousand, sixty-five".