26561696 has 72 divisors (see below), whose sum is σ = 63715680. Its totient is φ = 10647936.

The previous prime is 26561693. The next prime is 26561719. The reversal of 26561696 is 69616562.

It is not an unprimeable number, because it can be changed into a prime (26561693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336185 + ... + 336263.

It is an arithmetic number, because the mean of its divisors is an integer number (884940).

Almost surely, 2^26561696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26561696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31857840).

26561696 is an abundant number, since it is smaller than the sum of its proper divisors (37153984).

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

26561696 is an equidigital number, since it uses as much as digits as its factorization.

26561696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 107 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 26561696 is about 5153.8040319748. The cubic root of 26561696 is about 298.3677875656.

The spelling of 26561696 in words is "twenty-six million, five hundred sixty-one thousand, six hundred ninety-six".