26564423 has 2 divisors, whose sum is σ = 26564424. Its totient is φ = 26564422.

The previous prime is 26564407. The next prime is 26564431. The reversal of 26564423 is 32446562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26564423 - 2⁴ = 26564407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26564423.

It is a congruent number.

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, 13282211 + 13282212.

It is an arithmetic number, because the mean of its divisors is an integer number (13282212).

Almost surely, 2^26564423 is an apocalyptic number.

26564423 is a deficient number, since it is larger than the sum of its proper divisors (1).

26564423 is an equidigital number, since it uses as much as digits as its factorization.

26564423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 32.

The square root of 26564423 is about 5154.0685870485. The cubic root of 26564423 is about 298.3779980220.

The spelling of 26564423 in words is "twenty-six million, five hundred sixty-four thousand, four hundred twenty-three".