26105801 has 2 divisors, whose sum is σ = 26105802. Its totient is φ = 26105800.

The previous prime is 26105719. The next prime is 26105809. The reversal of 26105801 is 10850162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17977600 + 8128201 = 4240^2 + 2851^2 .

It is a cyclic number.

It is not a de Polignac number, because 26105801 - 2¹⁰ = 26104777 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (26105809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13052900 + 13052901.

It is an arithmetic number, because the mean of its divisors is an integer number (13052901).

Almost surely, 2^26105801 is an apocalyptic number.

It is an amenable number.

26105801 is a deficient number, since it is larger than the sum of its proper divisors (1).

26105801 is an equidigital number, since it uses as much as digits as its factorization.

26105801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 26105801 is about 5109.3836223169. The cubic root of 26105801 is about 296.6509028081.

Adding to 26105801 its reverse (10850162), we get a palindrome (36955963).

The spelling of 26105801 in words is "twenty-six million, one hundred five thousand, eight hundred one".