260015 has 32 divisors (see below), whose sum is σ = 414720. Its totient is φ = 152064.

The previous prime is 260011. The next prime is 260017. The reversal of 260015 is 510062.

260015 = T₅₀ + T₅₁ + ... + T₁₁₈.

260015 = 23² + 24² + ... + 92².

It is a cyclic number.

It is not a de Polignac number, because 260015 - 2² = 260011 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 260015.

It is not an unprimeable number, because it can be changed into a prime (260011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11294 + ... + 11316.

It is an arithmetic number, because the mean of its divisors is an integer number (12960).

2²⁶⁰⁰¹⁵ is an apocalyptic number.

260015 is a deficient number, since it is larger than the sum of its proper divisors (154705).

260015 is a wasteful number, since it uses less digits than its factorization.

260015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 260015 is about 509.9166598573. The cubic root of 260015 is about 63.8262703697.

Adding to 260015 its reverse (510062), we get a palindrome (770077).

Subtracting 260015 from its reverse (510062), we obtain a cube (250047 = 63³).

The spelling of 260015 in words is "two hundred sixty thousand, fifteen".