26391056 has 20 divisors (see below), whose sum is σ = 51782400. Its totient is φ = 13027872.

The previous prime is 26391047. The next prime is 26391059. The reversal of 26391056 is 65019362.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (26391059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9176 + ... + 11703.

It is an arithmetic number, because the mean of its divisors is an integer number (2589120).

Almost surely, 2^26391056 is an apocalyptic number.

It is an amenable number.

26391056 is a deficient number, since it is larger than the sum of its proper divisors (25391344).

26391056 is a wasteful number, since it uses less digits than its factorization.

26391056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20966 (or 20960 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 26391056 is about 5137.2225959170. Note that the first 3 decimals coincide. The cubic root of 26391056 is about 297.7274808410.

It can be divided in two parts, 263 and 91056, that added together give a palindrome (91319).

The spelling of 26391056 in words is "twenty-six million, three hundred ninety-one thousand, fifty-six".