26561117 has 8 divisors (see below), whose sum is σ = 29028672. Its totient is φ = 24102400.

The previous prime is 26561111. The next prime is 26561131. The reversal of 26561117 is 71116562.

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

It is a cyclic number.

It is not a de Polignac number, because 26561117 - 2¹⁴ = 26544733 is a prime.

It is a pancake number, because a pancake can be divided into 26561117 parts by 7288 straight cuts.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26561117.

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 7 ways as a sum of consecutive naturals, for example, 5168 + ... + 8934.

It is an arithmetic number, because the mean of its divisors is an integer number (3628584).

Almost surely, 2^26561117 is an apocalyptic number.

It is an amenable number.

26561117 is a deficient number, since it is larger than the sum of its proper divisors (2467555).

26561117 is a wasteful number, since it uses less digits than its factorization.

26561117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419.

The product of its digits is 2520, while the sum is 29.

The square root of 26561117 is about 5153.7478595678. The cubic root of 26561117 is about 298.3656195790.

Adding to 26561117 its reverse (71116562), we get a palindrome (97677679).

It can be divided in two parts, 2656 and 1117, that added together give a palindrome (3773).

The spelling of 26561117 in words is "twenty-six million, five hundred sixty-one thousand, one hundred seventeen".