26561694 has 16 divisors (see below), whose sum is σ = 53721360. Its totient is φ = 8754240.

The previous prime is 26561693. The next prime is 26561719. The reversal of 26561694 is 49616562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26561693) 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, 24337 + ... + 25404.

It is an arithmetic number, because the mean of its divisors is an integer number (3357585).

Almost surely, 2^26561694 is an apocalyptic number.

26561694 is an abundant number, since it is smaller than the sum of its proper divisors (27159666).

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

26561694 is a wasteful number, since it uses less digits than its factorization.

26561694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49835.

The product of its digits is 77760, while the sum is 39.

The square root of 26561694 is about 5153.8038379434. The cubic root of 26561694 is about 298.3677800769.

The spelling of 26561694 in words is "twenty-six million, five hundred sixty-one thousand, six hundred ninety-four".