26005541 has 2 divisors, whose sum is σ = 26005542. Its totient is φ = 26005540.

The previous prime is 26005513. The next prime is 26005549. The reversal of 26005541 is 14550062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24453025 + 1552516 = 4945^2 + 1246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26005541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26005549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13002770 + 13002771.

It is an arithmetic number, because the mean of its divisors is an integer number (13002771).

Almost surely, 2^26005541 is an apocalyptic number.

It is an amenable number.

26005541 is a deficient number, since it is larger than the sum of its proper divisors (1).

26005541 is an equidigital number, since it uses as much as digits as its factorization.

26005541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 26005541 is about 5099.5628243998. The cubic root of 26005541 is about 296.2706504622.

The spelling of 26005541 in words is "twenty-six million, five thousand, five hundred forty-one".