26656493 has 6 divisors (see below), whose sum is σ = 28317066. Its totient is φ = 25088192.

The previous prime is 26656463. The next prime is 26656499. The reversal of 26656493 is 39465662.

It can be written as a sum of positive squares in 3 ways, for example, as 9375844 + 17280649 = 3062^2 + 4157^2 .

It is not a de Polignac number, because 26656493 - 2⁶ = 26656429 is a prime.

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 26656493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26656499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45830 + ... + 46407.

It is an arithmetic number, because the mean of its divisors is an integer number (4719511).

Almost surely, 2^26656493 is an apocalyptic number.

It is an amenable number.

26656493 is a deficient number, since it is larger than the sum of its proper divisors (1660573).

26656493 is an equidigital number, since it uses as much as digits as its factorization.

26656493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92271 (or 92254 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 26656493 is about 5162.9926399328. The cubic root of 26656493 is about 298.7223180060.

The spelling of 26656493 in words is "twenty-six million, six hundred fifty-six thousand, four hundred ninety-three".