26255687 has 2 divisors, whose sum is σ = 26255688. Its totient is φ = 26255686.

The previous prime is 26255659. The next prime is 26255689. The reversal of 26255687 is 78655262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26255687 - 2⁸ = 26255431 is a prime.

It is a super-2 number, since 2×26255687² = 1378722199683938, which contains 22 as substring.

Together with 26255689, 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 (26255689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13127843 + 13127844.

It is an arithmetic number, because the mean of its divisors is an integer number (13127844).

Almost surely, 2^26255687 is an apocalyptic number.

26255687 is a deficient number, since it is larger than the sum of its proper divisors (1).

26255687 is an equidigital number, since it uses as much as digits as its factorization.

26255687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 41.

The square root of 26255687 is about 5124.0303472950. The cubic root of 26255687 is about 297.2175583641.

The spelling of 26255687 in words is "twenty-six million, two hundred fifty-five thousand, six hundred eighty-seven".