26564441 has 2 divisors, whose sum is σ = 26564442. Its totient is φ = 26564440.

The previous prime is 26564431. The next prime is 26564443. The reversal of 26564441 is 14446562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15241216 + 11323225 = 3904^2 + 3365^2 .

It is a cyclic number.

It is not a de Polignac number, because 26564441 - 2¹⁰ = 26563417 is a prime.

Together with 26564443, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26564398 and 26564407.

It is not a weakly prime, because it can be changed into another prime (26564443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13282220 + 13282221.

It is an arithmetic number, because the mean of its divisors is an integer number (13282221).

Almost surely, 2^26564441 is an apocalyptic number.

It is an amenable number.

26564441 is a deficient number, since it is larger than the sum of its proper divisors (1).

26564441 is an equidigital number, since it uses as much as digits as its factorization.

26564441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 32.

The square root of 26564441 is about 5154.0703332415. The cubic root of 26564441 is about 298.3780654154.

The spelling of 26564441 in words is "twenty-six million, five hundred sixty-four thousand, four hundred forty-one".