22064065 has 4 divisors (see below), whose sum is σ = 26476884. Its totient is φ = 17651248.

The previous prime is 22064023. The next prime is 22064083. The reversal of 22064065 is 56046022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56046022 = 2 ⋅28023011.

It can be written as a sum of positive squares in 2 ways, for example, as 12895281 + 9168784 = 3591^2 + 3028^2 .

It is a cyclic number.

It is not a de Polignac number, because 22064065 - 2⁹ = 22063553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2206402 + ... + 2206411.

It is an arithmetic number, because the mean of its divisors is an integer number (6619221).

Almost surely, 2^22064065 is an apocalyptic number.

It is an amenable number.

22064065 is a deficient number, since it is larger than the sum of its proper divisors (4412819).

22064065 is an equidigital number, since it uses as much as digits as its factorization.

22064065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412818.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 22064065 is about 4697.2401471502. The cubic root of 22064065 is about 280.4756583404.

The spelling of 22064065 in words is "twenty-two million, sixty-four thousand, sixty-five".