504425 has 6 divisors (see below), whose sum is σ = 625518. Its totient is φ = 403520.

The previous prime is 504403. The next prime is 504457. The reversal of 504425 is 524405.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 59536 + 444889 = 244^2 + 667^2 .

It is a de Polignac number, because none of the positive numbers 2^k-504425 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 504397 and 504406.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 504425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10064 + ... + 10113.

It is an arithmetic number, because the mean of its divisors is an integer number (104253).

2⁵⁰⁴⁴²⁵ is an apocalyptic number.

It is an amenable number.

504425 is a deficient number, since it is larger than the sum of its proper divisors (121093).

504425 is a wasteful number, since it uses less digits than its factorization.

504425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187 (or 20182 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 504425 is about 710.2288363619. The cubic root of 504425 is about 79.6035069118.

Subtracting from 504425 its sum of digits (20), we obtain a palindrome (504405).

It can be divided in two parts, 504 and 425, that added together give a palindrome (929).

The spelling of 504425 in words is "five hundred four thousand, four hundred twenty-five".