26713261 has 4 divisors (see below), whose sum is σ = 27013500. Its totient is φ = 26413024.

The previous prime is 26713243. The next prime is 26713319. The reversal of 26713261 is 16231762.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13616100 + 13097161 = 3690^2 + 3619^2 .

It is a cyclic number.

It is not a de Polignac number, because 26713261 - 2⁵ = 26713229 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 (26713201) 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, 149986 + ... + 150163.

It is an arithmetic number, because the mean of its divisors is an integer number (6753375).

Almost surely, 2^26713261 is an apocalyptic number.

It is an amenable number.

26713261 is a deficient number, since it is larger than the sum of its proper divisors (300239).

26713261 is an equidigital number, since it uses as much as digits as its factorization.

26713261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300238.

The product of its digits is 3024, while the sum is 28.

The square root of 26713261 is about 5168.4873028769. The cubic root of 26713261 is about 298.9342219110.

The spelling of 26713261 in words is "twenty-six million, seven hundred thirteen thousand, two hundred sixty-one".