26105291 has 2 divisors, whose sum is σ = 26105292. Its totient is φ = 26105290.

The previous prime is 26105281. The next prime is 26105323. The reversal of 26105291 is 19250162.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26105291 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26105291.

It is not a weakly prime, because it can be changed into another prime (26105281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13052645 + 13052646.

It is an arithmetic number, because the mean of its divisors is an integer number (13052646).

Almost surely, 2^26105291 is an apocalyptic number.

26105291 is a deficient number, since it is larger than the sum of its proper divisors (1).

26105291 is an equidigital number, since it uses as much as digits as its factorization.

26105291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 26105291 is about 5109.3337139005. Note that the first 3 decimals coincide. The cubic root of 26105291 is about 296.6489710159.

It can be divided in two parts, 261052 and 91, that multiplied together give a palindrome (23755732).

The spelling of 26105291 in words is "twenty-six million, one hundred five thousand, two hundred ninety-one".