265015 has 4 divisors (see below), whose sum is σ = 318024. Its totient is φ = 212008.

The previous prime is 265007. The next prime is 265021. The reversal of 265015 is 510562.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 265015 - 2³ = 265007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264983 and 265001.

It is a congruent number.

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, 26497 + ... + 26506.

It is an arithmetic number, because the mean of its divisors is an integer number (79506).

2²⁶⁵⁰¹⁵ is an apocalyptic number.

265015 is a deficient number, since it is larger than the sum of its proper divisors (53009).

265015 is an equidigital number, since it uses as much as digits as its factorization.

265015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53008.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 265015 is about 514.7960761311. The cubic root of 265015 is about 64.2327947794.

Adding to 265015 its reverse (510562), we get a palindrome (775577).

It can be divided in two parts, 26 and 5015, that added together give a square (5041 = 71²).

The spelling of 265015 in words is "two hundred sixty-five thousand, fifteen".