505442530313 has 24 divisors (see below), whose sum is σ = 592679690304. Its totient is φ = 422242508160.

The previous prime is 505442530309. The next prime is 505442530337. The reversal of 505442530313 is 313035244505.

It is a happy number.

It is not a de Polignac number, because 505442530313 - 2² = 505442530309 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505442530363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11898770 + ... + 11941172.

It is an arithmetic number, because the mean of its divisors is an integer number (24694987096).

Almost surely, 2^505442530313 is an apocalyptic number.

It is an amenable number.

505442530313 is a deficient number, since it is larger than the sum of its proper divisors (87237159991).

505442530313 is a wasteful number, since it uses less digits than its factorization.

505442530313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43505 (or 43464 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 505442530313 its reverse (313035244505), we get a palindrome (818477774818).

The spelling of 505442530313 in words is "five hundred five billion, four hundred forty-two million, five hundred thirty thousand, three hundred thirteen".