26561022 has 16 divisors (see below), whose sum is σ = 53639040. Its totient is φ = 8767512.

The previous prime is 26561009. The next prime is 26561027. The reversal of 26561022 is 22016562.

It is a junction number, because it is equal to n+sod(n) for n = 26560983 and 26561001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26561027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20872 + ... + 22107.

It is an arithmetic number, because the mean of its divisors is an integer number (3352440).

Almost surely, 2^26561022 is an apocalyptic number.

26561022 is an abundant number, since it is smaller than the sum of its proper divisors (27078018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26561022 is a wasteful number, since it uses less digits than its factorization.

26561022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43087.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 26561022 is about 5153.7386429659. The cubic root of 26561022 is about 298.3652638614.

Adding to 26561022 its reverse (22016562), we get a palindrome (48577584).

The spelling of 26561022 in words is "twenty-six million, five hundred sixty-one thousand, twenty-two".