531522718652 has 6 divisors (see below), whose sum is σ = 930164757648. Its totient is φ = 265761359324.

The previous prime is 531522718633. The next prime is 531522718687. The reversal of 531522718652 is 256817225135.

It is a junction number, because it is equal to n+sod(n) for n = 531522718597 and 531522718606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66440339828 + ... + 66440339835.

It is an arithmetic number, because the mean of its divisors is an integer number (155027459608).

Almost surely, 2^531522718652 is an apocalyptic number.

It is an amenable number.

531522718652 is a deficient number, since it is larger than the sum of its proper divisors (398642038996).

531522718652 is a wasteful number, since it uses less digits than its factorization.

531522718652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132880679667 (or 132880679665 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 47.

The spelling of 531522718652 in words is "five hundred thirty-one billion, five hundred twenty-two million, seven hundred eighteen thousand, six hundred fifty-two".