26455591 has 2 divisors, whose sum is σ = 26455592. Its totient is φ = 26455590.

The previous prime is 26455579. The next prime is 26455603. The reversal of 26455591 is 19555462.

It is a balanced prime because it is at equal distance from previous prime (26455579) and next prime (26455603).

It is a cyclic number.

It is not a de Polignac number, because 26455591 - 2⁷ = 26455463 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26455591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26455531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13227795 + 13227796.

It is an arithmetic number, because the mean of its divisors is an integer number (13227796).

Almost surely, 2^26455591 is an apocalyptic number.

26455591 is a deficient number, since it is larger than the sum of its proper divisors (1).

26455591 is an equidigital number, since it uses as much as digits as its factorization.

26455591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 37.

The square root of 26455591 is about 5143.4998784874. The cubic root of 26455591 is about 297.9699645419.

It can be divided in two parts, 264 and 55591, that added together give a palindrome (55855).

The spelling of 26455591 in words is "twenty-six million, four hundred fifty-five thousand, five hundred ninety-one".