22064825 has 6 divisors (see below), whose sum is σ = 27360414. Its totient is φ = 17651840.

The previous prime is 22064813. The next prime is 22064849. The reversal of 22064825 is 52846022.

It can be written as a sum of positive squares in 3 ways, for example, as 6446521 + 15618304 = 2539^2 + 3952^2 .

It is not a de Polignac number, because 22064825 - 2⁸ = 22064569 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 5 ways as a sum of consecutive naturals, for example, 441272 + ... + 441321.

It is an arithmetic number, because the mean of its divisors is an integer number (4560069).

Almost surely, 2^22064825 is an apocalyptic number.

22064825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22064825 is a deficient number, since it is larger than the sum of its proper divisors (5295589).

22064825 is an equidigital number, since it uses as much as digits as its factorization.

22064825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882603 (or 882598 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 22064825 is about 4697.3210450213. The cubic root of 22064825 is about 280.4788786453.

The spelling of 22064825 in words is "twenty-two million, sixty-four thousand, eight hundred twenty-five".