505524004 has 12 divisors (see below), whose sum is σ = 884826124. Its totient is φ = 252716544.

The previous prime is 505523999. The next prime is 505524011. The reversal of 505524004 is 400425505.

It can be written as a sum of positive squares in 2 ways, for example, as 178275904 + 327248100 = 13352^2 + 18090^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 505524004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32272 + ... + 45304.

Almost surely, 2^505524004 is an apocalyptic number.

It is an amenable number.

505524004 is a deficient number, since it is larger than the sum of its proper divisors (379302120).

505524004 is a wasteful number, since it uses less digits than its factorization.

505524004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22734 (or 22732 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 505524004 is about 22483.8609673695. The cubic root of 505524004 is about 796.6127639477.

Adding to 505524004 its reverse (400425505), we get a palindrome (905949509).

The spelling of 505524004 in words is "five hundred five million, five hundred twenty-four thousand, four".