22064513 has 4 divisors (see below), whose sum is σ = 22101828. Its totient is φ = 22027200.

The previous prime is 22064477. The next prime is 22064531. The reversal of 22064513 is 31546022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31546022 = 2 ⋅15773011.

It can be written as a sum of positive squares in 2 ways, for example, as 18722929 + 3341584 = 4327^2 + 1828^2 .

It is a cyclic number.

It is not a de Polignac number, because 22064513 - 2¹⁴ = 22048129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22064213) 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, 17756 + ... + 18957.

It is an arithmetic number, because the mean of its divisors is an integer number (5525457).

Almost surely, 2^22064513 is an apocalyptic number.

It is an amenable number.

22064513 is a deficient number, since it is larger than the sum of its proper divisors (37315).

22064513 is an equidigital number, since it uses as much as digits as its factorization.

22064513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37314.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22064513 is about 4697.2878344849. The cubic root of 22064513 is about 280.4775566344.

The spelling of 22064513 in words is "twenty-two million, sixty-four thousand, five hundred thirteen".