531543004345 has 4 divisors (see below), whose sum is σ = 637851605220. Its totient is φ = 425234403472.

The previous prime is 531543004327. The next prime is 531543004351. The reversal of 531543004345 is 543400345135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67656691881 + 463886312464 = 260109^2 + 681092^2 .

It is a cyclic number.

It is not a de Polignac number, because 531543004345 - 2¹¹ = 531543002297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53154300430 + ... + 53154300439.

It is an arithmetic number, because the mean of its divisors is an integer number (159462901305).

Almost surely, 2^531543004345 is an apocalyptic number.

It is an amenable number.

531543004345 is a deficient number, since it is larger than the sum of its proper divisors (106308600875).

531543004345 is a wasteful number, since it uses less digits than its factorization.

531543004345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106308600874.

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 531543004345 in words is "five hundred thirty-one billion, five hundred forty-three million, four thousand, three hundred forty-five".