26561118 has 8 divisors (see below), whose sum is σ = 53122248. Its totient is φ = 8853704.

The previous prime is 26561111. The next prime is 26561131. The reversal of 26561118 is 81116562.

It is a sphenic number, since it is the product of 3 distinct primes.

26561118 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26561111) 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 3 ways as a sum of consecutive naturals, for example, 2213421 + ... + 2213432.

It is an arithmetic number, because the mean of its divisors is an integer number (6640281).

Almost surely, 2^26561118 is an apocalyptic number.

26561118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

26561118 is a wasteful number, since it uses less digits than its factorization.

26561118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4426858.

The product of its digits is 2880, while the sum is 30.

The square root of 26561118 is about 5153.7479565846. The cubic root of 26561118 is about 298.3656233234.

The spelling of 26561118 in words is "twenty-six million, five hundred sixty-one thousand, one hundred eighteen".