533520324021 has 16 divisors (see below), whose sum is σ = 742416186240. Its totient is φ = 340157632320.

The previous prime is 533520324019. The next prime is 533520324097. The reversal of 533520324021 is 120423025335.

It is not a de Polignac number, because 533520324021 - 2¹ = 533520324019 is a prime.

It is a super-2 number, since 2×533520324021² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 533520324021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533520304021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253770 + ... + 1063691.

It is an arithmetic number, because the mean of its divisors is an integer number (46401011640).

Almost surely, 2^533520324021 is an apocalyptic number.

It is an amenable number.

533520324021 is a deficient number, since it is larger than the sum of its proper divisors (208895862219).

533520324021 is a wasteful number, since it uses less digits than its factorization.

533520324021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323356.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 533520324021 its reverse (120423025335), we get a palindrome (653943349356).

The spelling of 533520324021 in words is "five hundred thirty-three billion, five hundred twenty million, three hundred twenty-four thousand, twenty-one".