530985451521 has 16 divisors (see below), whose sum is σ = 809132073984. Its totient is φ = 303415988304.

The previous prime is 530985451487. The next prime is 530985451571. The reversal of 530985451521 is 125154589035.

It is not a de Polignac number, because 530985451521 - 2¹⁸ = 530985189377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (530985451571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1931740 + ... + 2189426.

It is an arithmetic number, because the mean of its divisors is an integer number (50570754624).

Almost surely, 2^530985451521 is an apocalyptic number.

It is an amenable number.

530985451521 is a deficient number, since it is larger than the sum of its proper divisors (278146622463).

530985451521 is a wasteful number, since it uses less digits than its factorization.

530985451521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355820.

The product of its (nonzero) digits is 1080000, while the sum is 48.

The spelling of 530985451521 in words is "five hundred thirty billion, nine hundred eighty-five million, four hundred fifty-one thousand, five hundred twenty-one".