26200091 has 2 divisors, whose sum is σ = 26200092. Its totient is φ = 26200090.

The previous prime is 26200063. The next prime is 26200099. The reversal of 26200091 is 19000262.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26200091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26200099) 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, 13100045 + 13100046.

It is an arithmetic number, because the mean of its divisors is an integer number (13100046).

Almost surely, 2^26200091 is an apocalyptic number.

26200091 is a deficient number, since it is larger than the sum of its proper divisors (1).

26200091 is an equidigital number, since it uses as much as digits as its factorization.

26200091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 26200091 is about 5118.6024459807. The cubic root of 26200091 is about 297.0076256323.

The spelling of 26200091 in words is "twenty-six million, two hundred thousand, ninety-one".