26082581 has 4 divisors (see below), whose sum is σ = 29808672. Its totient is φ = 22356492.

The previous prime is 26082577. The next prime is 26082583. The reversal of 26082581 is 18528062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26082581 - 2² = 26082577 is a prime.

It is a super-2 number, since 2×26082581² = 1360602063243122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26082583) 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, 1863035 + ... + 1863048.

It is an arithmetic number, because the mean of its divisors is an integer number (7452168).

Almost surely, 2^26082581 is an apocalyptic number.

It is an amenable number.

26082581 is a deficient number, since it is larger than the sum of its proper divisors (3726091).

26082581 is an equidigital number, since it uses as much as digits as its factorization.

26082581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726090.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 26082581 is about 5107.1108270724. The cubic root of 26082581 is about 296.5629239302.

The spelling of 26082581 in words is "twenty-six million, eighty-two thousand, five hundred eighty-one".