515255 has 8 divisors (see below), whose sum is σ = 665952. Its totient is φ = 380448.

The previous prime is 515237. The next prime is 515279. The reversal of 515255 is 552515.

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 515255 - 2⁶ = 515191 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 515255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3899 + ... + 4028.

It is an arithmetic number, because the mean of its divisors is an integer number (83244).

2⁵¹⁵²⁵⁵ is an apocalyptic number.

515255 is a deficient number, since it is larger than the sum of its proper divisors (150697).

515255 is a wasteful number, since it uses less digits than its factorization.

515255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945.

The product of its digits is 1250, while the sum is 23.

The square root of 515255 is about 717.8126496517. The cubic root of 515255 is about 80.1691732530.

The spelling of 515255 in words is "five hundred fifteen thousand, two hundred fifty-five".