504005 has 4 divisors (see below), whose sum is σ = 604812. Its totient is φ = 403200.

The previous prime is 504001. The next prime is 504011. The reversal of 504005 is 500405.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51076 + 452929 = 226^2 + 673^2 .

It is not a de Polignac number, because 504005 - 2² = 504001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50396 + ... + 50405.

It is an arithmetic number, because the mean of its divisors is an integer number (151203).

2⁵⁰⁴⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

504005 is a deficient number, since it is larger than the sum of its proper divisors (100807).

504005 is a wasteful number, since it uses less digits than its factorization.

504005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100806.

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 504005 is about 709.9330954393. The cubic root of 504005 is about 79.5814073222.

Subtracting from 504005 its reverse (500405), we obtain a square (3600 = 60²).

It can be divided in two parts, 50400 and 5, that added together give a palindrome (50405).

The spelling of 504005 in words is "five hundred four thousand, five".