26350189 has 2 divisors, whose sum is σ = 26350190. Its totient is φ = 26350188.

The previous prime is 26350171. The next prime is 26350199. The reversal of 26350189 is 98105362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26347689 + 2500 = 5133^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 26350189 - 2⁷ = 26350061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26350199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13175094 + 13175095.

It is an arithmetic number, because the mean of its divisors is an integer number (13175095).

Almost surely, 2^26350189 is an apocalyptic number.

It is an amenable number.

26350189 is a deficient number, since it is larger than the sum of its proper divisors (1).

26350189 is an equidigital number, since it uses as much as digits as its factorization.

26350189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 26350189 is about 5133.2435165303. The cubic root of 26350189 is about 297.5737227553.

The spelling of 26350189 in words is "twenty-six million, three hundred fifty thousand, one hundred eighty-nine".