26000081 has 2 divisors, whose sum is σ = 26000082. Its totient is φ = 26000080.

The previous prime is 26000077. The next prime is 26000083. The reversal of 26000081 is 18000062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21939856 + 4060225 = 4684^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 26000081 - 2² = 26000077 is a prime.

It is a super-2 number, since 2×26000081² = 1352008424013122, which contains 22 as substring.

Together with 26000083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26000083) 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 as a sum of consecutive naturals, namely, 13000040 + 13000041.

It is an arithmetic number, because the mean of its divisors is an integer number (13000041).

Almost surely, 2^26000081 is an apocalyptic number.

It is an amenable number.

26000081 is a deficient number, since it is larger than the sum of its proper divisors (1).

26000081 is an equidigital number, since it uses as much as digits as its factorization.

26000081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 26000081 is about 5099.0274562901. The cubic root of 26000081 is about 296.2499144842.

The spelling of 26000081 in words is "twenty-six million, eighty-one", and thus it is an aban number and an uban number.