26105623 has 2 divisors, whose sum is σ = 26105624. Its totient is φ = 26105622.

The previous prime is 26105593. The next prime is 26105641. The reversal of 26105623 is 32650162.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26105623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26105323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13052811 + 13052812.

It is an arithmetic number, because the mean of its divisors is an integer number (13052812).

Almost surely, 2^26105623 is an apocalyptic number.

26105623 is a deficient number, since it is larger than the sum of its proper divisors (1).

26105623 is an equidigital number, since it uses as much as digits as its factorization.

26105623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 26105623 is about 5109.3662033563. The cubic root of 26105623 is about 296.6502285776.

Adding to 26105623 its reverse (32650162), we get a palindrome (58755785).

The spelling of 26105623 in words is "twenty-six million, one hundred five thousand, six hundred twenty-three".