505138041 has 6 divisors (see below), whose sum is σ = 729643850. Its totient is φ = 336758688.

The previous prime is 505138019. The next prime is 505138057. The reversal of 505138041 is 140831505.

It can be written as a sum of positive squares in only one way, i.e., 276523641 + 228614400 = 16629^2 + 15120^2 .

It is not a de Polignac number, because 505138041 - 2¹⁸ = 504875897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505137996 and 505138014.

It is not an unprimeable number, because it can be changed into a prime (505138001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28063216 + ... + 28063233.

Almost surely, 2^505138041 is an apocalyptic number.

It is an amenable number.

505138041 is a deficient number, since it is larger than the sum of its proper divisors (224505809).

505138041 is a wasteful number, since it uses less digits than its factorization.

505138041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56126455 (or 56126452 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 505138041 is about 22475.2762163227. The cubic root of 505138041 is about 796.4099767860.

Adding to 505138041 its reverse (140831505), we get a palindrome (645969546).

The spelling of 505138041 in words is "five hundred five million, one hundred thirty-eight thousand, forty-one".