505305050053 has 4 divisors (see below), whose sum is σ = 505306473868. Its totient is φ = 505303626240.

The previous prime is 505305050011. The next prime is 505305050057. The reversal of 505305050053 is 350050503505.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 493726859649 + 11578190404 = 702657^2 + 107602^2 .

It is a cyclic number.

It is not a de Polignac number, because 505305050053 - 2¹³ = 505305041861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505305049997 and 505305050024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505305050057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297733 + ... + 1048453.

It is an arithmetic number, because the mean of its divisors is an integer number (126326618467).

Almost surely, 2^505305050053 is an apocalyptic number.

It is an amenable number.

505305050053 is a deficient number, since it is larger than the sum of its proper divisors (1423815).

505305050053 is an equidigital number, since it uses as much as digits as its factorization.

505305050053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423814.

The product of its (nonzero) digits is 28125, while the sum is 31.

Adding to 505305050053 its reverse (350050503505), we get a palindrome (855355553558).

The spelling of 505305050053 in words is "five hundred five billion, three hundred five million, fifty thousand, fifty-three".