531543315532 has 12 divisors (see below), whose sum is σ = 932236255720. Its totient is φ = 265190099616.

The previous prime is 531543315509. The next prime is 531543315539. The reversal of 531543315532 is 235513345135.

It is not an unprimeable number, because it can be changed into a prime (531543315539) 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, 145387482 + ... + 145391137.

Almost surely, 2^531543315532 is an apocalyptic number.

It is an amenable number.

531543315532 is a deficient number, since it is larger than the sum of its proper divisors (400692940188).

531543315532 is a wasteful number, since it uses less digits than its factorization.

531543315532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290779080 (or 290779078 counting only the distinct ones).

The product of its digits is 405000, while the sum is 40.

The spelling of 531543315532 in words is "five hundred thirty-one billion, five hundred forty-three million, three hundred fifteen thousand, five hundred thirty-two".