515005 has 4 divisors (see below), whose sum is σ = 618012. Its totient is φ = 412000.

The previous prime is 514967. The next prime is 515041. The reversal of 515005 is 500515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500515 = 5 ⋅100103.

It can be written as a sum of positive squares in 2 ways, for example, as 91204 + 423801 = 302^2 + 651^2 .

It is a de Polignac number, because none of the positive numbers 2^k-515005 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 515005.

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, 51496 + ... + 51505.

It is an arithmetic number, because the mean of its divisors is an integer number (154503).

2⁵¹⁵⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

515005 is a deficient number, since it is larger than the sum of its proper divisors (103007).

515005 is a wasteful number, since it uses less digits than its factorization.

515005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103006.

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 515005 is about 717.6384883770. The cubic root of 515005 is about 80.1562052173.

It can be divided in two parts, 51 and 5005, that multiplied together give a triangular number (255255 = T₇₁₄).

The spelling of 515005 in words is "five hundred fifteen thousand, five".