531534021545552 has 40 divisors (see below), whose sum is σ = 1057988970301416. Its totient is φ = 258508794525696.

The previous prime is 531534021545497. The next prime is 531534021545573. The reversal of 531534021545552 is 255545120435135.

It can be written as a sum of positive squares in 4 ways, for example, as 126737970777616 + 404796050767936 = 11257796^2 + 20119544^2 .

It is a super-3 number, since 3×531534021545552³ (a number of 45 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 531534021545552.

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 7 ways as a sum of consecutive naturals, for example, 128736893 + ... + 132801564.

Almost surely, 2^{531534021545552} is an apocalyptic number.

It is an amenable number.

531534021545552 is a deficient number, since it is larger than the sum of its proper divisors (526454948755864).

531534021545552 is a wasteful number, since it uses less digits than its factorization.

531534021545552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261541935 (or 261541929 counting only the distinct ones).

The product of its (nonzero) digits is 9000000, while the sum is 50.

The spelling of 531534021545552 in words is "five hundred thirty-one trillion, five hundred thirty-four billion, twenty-one million, five hundred forty-five thousand, five hundred fifty-two".