26561822 has 24 divisors (see below), whose sum is σ = 46724040. Its totient is φ = 11291280.

The previous prime is 26561789. The next prime is 26561827. The reversal of 26561822 is 22816562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26561827) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11804 + ... + 13872.

It is an arithmetic number, because the mean of its divisors is an integer number (1946835).

Almost surely, 2^26561822 is an apocalyptic number.

26561822 is a deficient number, since it is larger than the sum of its proper divisors (20162218).

26561822 is a wasteful number, since it uses less digits than its factorization.

26561822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2209 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 26561822 is about 5153.8162559408. The cubic root of 26561822 is about 298.3682593513.

The spelling of 26561822 in words is "twenty-six million, five hundred sixty-one thousand, eight hundred twenty-two".