26045 has 4 divisors (see below), whose sum is σ = 31260. Its totient is φ = 20832.

The previous prime is 26041. The next prime is 26053. The reversal of 26045 is 54062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54062 = 2 ⋅27031.

It can be written as a sum of positive squares in 2 ways, for example, as 19321 + 6724 = 139^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 26045 - 2² = 26041 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 26045.

It is not an unprimeable number, because it can be changed into a prime (26041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2600 + ... + 2609.

It is an arithmetic number, because the mean of its divisors is an integer number (7815).

2²⁶⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

26045 is a deficient number, since it is larger than the sum of its proper divisors (5215).

26045 is an equidigital number, since it uses as much as digits as its factorization.

26045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 26045 is about 161.3846337171. The cubic root of 26045 is about 29.6420421566.

Adding to 26045 its sum of digits (17), we get a palindrome (26062).

It can be divided in two parts, 2 and 6045, that multiplied together give a triangular number (12090 = T₁₅₅).

The spelling of 26045 in words is "twenty-six thousand, forty-five".