504545404 has 24 divisors (see below), whose sum is σ = 964193328. Its totient is φ = 229107840.

The previous prime is 504545401. The next prime is 504545417. The reversal of 504545404 is 404545405.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504545401) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 43042 + ... + 53494.

It is an arithmetic number, because the mean of its divisors is an integer number (40174722).

Almost surely, 2^504545404 is an apocalyptic number.

It is an amenable number.

504545404 is a deficient number, since it is larger than the sum of its proper divisors (459647924).

504545404 is a wasteful number, since it uses less digits than its factorization.

504545404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11565 (or 11563 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 504545404 is about 22462.0881487007. The cubic root of 504545404 is about 796.0984007542.

Subtracting from 504545404 its reverse (404545405), we obtain a palindrome (99999999).

It can be divided in two parts, 50 and 4545404, that added together give a palindrome (4545454).

The spelling of 504545404 in words is "five hundred four million, five hundred forty-five thousand, four hundred four".