26571 has 8 divisors (see below), whose sum is σ = 37584. Its totient is φ = 16640.

The previous prime is 26561. The next prime is 26573. The reversal of 26571 is 17562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26571 - 2⁵ = 26539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210 + ... + 311.

It is an arithmetic number, because the mean of its divisors is an integer number (4698).

2²⁶⁵⁷¹ is an apocalyptic number.

26571 is a deficient number, since it is larger than the sum of its proper divisors (11013).

26571 is a wasteful number, since it uses less digits than its factorization.

26571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541.

The product of its digits is 420, while the sum is 21.

The square root of 26571 is about 163.0061348539. The cubic root of 26571 is about 29.8402620806.

Subtracting from 26571 its reverse (17562), we obtain a palindrome (9009).

The spelling of 26571 in words is "twenty-six thousand, five hundred seventy-one".