26534591 has 2 divisors, whose sum is σ = 26534592. Its totient is φ = 26534590.

The previous prime is 26534561. The next prime is 26534593. The reversal of 26534591 is 19543562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26534591 - 2⁶ = 26534527 is a prime.

Together with 26534593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26534593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13267295 + 13267296.

It is an arithmetic number, because the mean of its divisors is an integer number (13267296).

Almost surely, 2^26534591 is an apocalyptic number.

26534591 is a deficient number, since it is larger than the sum of its proper divisors (1).

26534591 is an equidigital number, since it uses as much as digits as its factorization.

26534591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 35.

The square root of 26534591 is about 5151.1737497390. The cubic root of 26534591 is about 298.2662627818.

The spelling of 26534591 in words is "twenty-six million, five hundred thirty-four thousand, five hundred ninety-one".