505015 has 16 divisors (see below), whose sum is σ = 709632. Its totient is φ = 337824.

The previous prime is 504991. The next prime is 505027. The reversal of 505015 is 510505.

505015 = 48² + 49² + ... + 117².

505015 is nontrivially palindromic in base 16.

It is a cyclic number.

It is not a de Polignac number, because 505015 - 2⁵ = 504983 is a prime.

505015 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 505015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1492 + ... + 1798.

It is an arithmetic number, because the mean of its divisors is an integer number (44352).

2⁵⁰⁵⁰¹⁵ is an apocalyptic number.

505015 is a deficient number, since it is larger than the sum of its proper divisors (204617).

505015 is a wasteful number, since it uses less digits than its factorization.

505015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366.

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

The square root of 505015 is about 710.6440740624. The cubic root of 505015 is about 79.6345308630.

The spelling of 505015 in words is "five hundred five thousand, fifteen".