52213023215421 has 16 divisors (see below), whose sum is σ = 72138099010560. Its totient is φ = 33568808560560.

The previous prime is 52213023215411. The next prime is 52213023215497. The reversal of 52213023215421 is 12451232031225.

It is not a de Polignac number, because 52213023215421 - 2⁹ = 52213023214909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52213023215401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2561712075 + ... + 2561732456.

It is an arithmetic number, because the mean of its divisors is an integer number (4508631188160).

Almost surely, 2^{52213023215421} is an apocalyptic number.

It is an amenable number.

52213023215421 is a deficient number, since it is larger than the sum of its proper divisors (19925075795139).

52213023215421 is a wasteful number, since it uses less digits than its factorization.

52213023215421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123444656.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 52213023215421 its reverse (12451232031225), we get a palindrome (64664255246646).

The spelling of 52213023215421 in words is "fifty-two trillion, two hundred thirteen billion, twenty-three million, two hundred fifteen thousand, four hundred twenty-one".