26506791 has 48 divisors (see below), whose sum is σ = 43225600. Its totient is φ = 16039296.

The previous prime is 26506771. The next prime is 26506801. The reversal of 26506791 is 19760562.

It is not a de Polignac number, because 26506791 - 2⁵ = 26506759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26506721) 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 47 ways as a sum of consecutive naturals, for example, 335490 + ... + 335568.

Almost surely, 2^26506791 is an apocalyptic number.

26506791 is a deficient number, since it is larger than the sum of its proper divisors (16718809).

26506791 is a wasteful number, since it uses less digits than its factorization.

26506791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 26506791 is about 5148.4746284701. The cubic root of 26506791 is about 298.1620629528.

The spelling of 26506791 in words is "twenty-six million, five hundred six thousand, seven hundred ninety-one".