26261567 has 2 divisors, whose sum is σ = 26261568. Its totient is φ = 26261566.

The previous prime is 26261513. The next prime is 26261569. The reversal of 26261567 is 76516262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26261567 - 2¹⁸ = 25999423 is a prime.

Together with 26261569, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26261569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13130783 + 13130784.

It is an arithmetic number, because the mean of its divisors is an integer number (13130784).

Almost surely, 2^26261567 is an apocalyptic number.

26261567 is a deficient number, since it is larger than the sum of its proper divisors (1).

26261567 is an equidigital number, since it uses as much as digits as its factorization.

26261567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 26261567 is about 5124.6040822682. The cubic root of 26261567 is about 297.2397441455.

The spelling of 26261567 in words is "twenty-six million, two hundred sixty-one thousand, five hundred sixty-seven".