26215 has 12 divisors (see below), whose sum is σ = 36936. Its totient is φ = 17808.

The previous prime is 26209. The next prime is 26227. The reversal of 26215 is 51262.

26215 = T₅ + T₆ + ... + T₅₃.

It is a happy number.

It is not a de Polignac number, because 26215 - 2⁵ = 26183 is a prime.

It is a Duffinian number.

26215 is a lucky number.

It is a plaindrome in base 16.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192 + ... + 298.

It is an arithmetic number, because the mean of its divisors is an integer number (3078).

2²⁶²¹⁵ is an apocalyptic number.

26215 is a deficient number, since it is larger than the sum of its proper divisors (10721).

26215 is a wasteful number, since it uses less digits than its factorization.

26215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 119 counting only the distinct ones).

The product of its digits is 120, while the sum is 16.

The square root of 26215 is about 161.9104690871. The cubic root of 26215 is about 29.7063951735.

Adding to 26215 its product of digits (120), we get a triangular number (26335 = T₂₂₉).

Adding to 26215 its reverse (51262), we get a palindrome (77477).

The spelling of 26215 in words is "twenty-six thousand, two hundred fifteen".