26545 has 4 divisors (see below), whose sum is σ = 31860. Its totient is φ = 21232.

The previous prime is 26539. The next prime is 26557. The reversal of 26545 is 54562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54562 = 2 ⋅27281.

It can be written as a sum of positive squares in 2 ways, for example, as 3136 + 23409 = 56^2 + 153^2 .

It is a cyclic number.

It is not a de Polignac number, because 26545 - 2⁵ = 26513 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2650 + ... + 2659.

It is an arithmetic number, because the mean of its divisors is an integer number (7965).

2²⁶⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

26545 is a deficient number, since it is larger than the sum of its proper divisors (5315).

26545 is an equidigital number, since it uses as much as digits as its factorization.

26545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314.

The product of its digits is 1200, while the sum is 22.

The square root of 26545 is about 162.9263637353. The cubic root of 26545 is about 29.8305259019.

The spelling of 26545 in words is "twenty-six thousand, five hundred forty-five".