26805241 has 2 divisors, whose sum is σ = 26805242. Its totient is φ = 26805240.

The previous prime is 26805239. The next prime is 26805301. The reversal of 26805241 is 14250862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26419600 + 385641 = 5140^2 + 621^2 .

It is a cyclic number.

It is not a de Polignac number, because 26805241 - 2¹ = 26805239 is a prime.

Together with 26805239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26805221) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13402620 + 13402621.

It is an arithmetic number, because the mean of its divisors is an integer number (13402621).

Almost surely, 2^26805241 is an apocalyptic number.

It is an amenable number.

26805241 is a deficient number, since it is larger than the sum of its proper divisors (1).

26805241 is an equidigital number, since it uses as much as digits as its factorization.

26805241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 26805241 is about 5177.3778112091. The cubic root of 26805241 is about 299.2769289983.

It can be divided in two parts, 2680 and 5241, that added together give a square (7921 = 89²).

The spelling of 26805241 in words is "twenty-six million, eight hundred five thousand, two hundred forty-one".