505521716852 has 48 divisors (see below), whose sum is σ = 910753708032. Its totient is φ = 245370885120.

The previous prime is 505521716837. The next prime is 505521716881. The reversal of 505521716852 is 258617125505.

It is a junction number, because it is equal to n+sod(n) for n = 505521716797 and 505521716806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27188303 + ... + 27206889.

It is an arithmetic number, because the mean of its divisors is an integer number (18974035584).

Almost surely, 2^505521716852 is an apocalyptic number.

It is an amenable number.

505521716852 is a deficient number, since it is larger than the sum of its proper divisors (405231991180).

505521716852 is a wasteful number, since it uses less digits than its factorization.

505521716852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19448 (or 19446 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 47.

The spelling of 505521716852 in words is "five hundred five billion, five hundred twenty-one million, seven hundred sixteen thousand, eight hundred fifty-two".