26539 has 2 divisors, whose sum is σ = 26540.
Its totient is φ = 26538.
The previous prime is 26513. The next prime is 26557. The reversal of 26539 is 93562.
It can be divided in two parts, 2653 and 9, that added together give a palindrome (2662).
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-26539 is a prime.
It is a plaindrome in base 16.
It is not a weakly prime, because it can be changed into another prime (26339) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13269 + 13270.
It is an arithmetic number, because the mean of its divisors is an integer number (13270).
226539 is an apocalyptic number.
26539 is a deficient number, since it is larger than the sum of its proper divisors (1).
26539 is an equidigital number, since it uses as much as digits as its factorization.
26539 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1620, while the sum is 25.
The square root of 26539 is about 162.9079494684.
The cubic root of 26539 is about 29.8282781887.
The spelling of 26539 in words is "twenty-six thousand, five hundred thirty-nine".