531328852481 has 6 divisors (see below), whose sum is σ = 618076420290. Its totient is φ = 455424730656.

The previous prime is 531328852471. The next prime is 531328852507. The reversal of 531328852481 is 184258823135.

It can be written as a sum of positive squares in only one way, i.e., 502425792400 + 28903060081 = 708820^2 + 170009^2 .

It is a de Polignac number, because none of the positive numbers 2^k-531328852481 is a prime.

It is a super-2 number, since 2×531328852481² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531328852421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5421722936 + ... + 5421723033.

It is an arithmetic number, because the mean of its divisors is an integer number (103012736715).

Almost surely, 2^531328852481 is an apocalyptic number.

It is an amenable number.

531328852481 is a deficient number, since it is larger than the sum of its proper divisors (86747567809).

531328852481 is a wasteful number, since it uses less digits than its factorization.

531328852481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10843445983 (or 10843445976 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 50.

The spelling of 531328852481 in words is "five hundred thirty-one billion, three hundred twenty-eight million, eight hundred fifty-two thousand, four hundred eighty-one".