53013205321 has 16 divisors (see below), whose sum is σ = 56022727248. Its totient is φ = 50105952000.

The previous prime is 53013205207. The next prime is 53013205339. The reversal of 53013205321 is 12350231035.

53013205321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4181044921 + 48832160400 = 64661^2 + 220980^2 .

It is a cyclic number.

It is not a de Polignac number, because 53013205321 - 2⁹ = 53013204809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53013205361) 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, 64231 + ... + 331891.

It is an arithmetic number, because the mean of its divisors is an integer number (3501420453).

Almost surely, 2^53013205321 is an apocalyptic number.

It is an amenable number.

53013205321 is a deficient number, since it is larger than the sum of its proper divisors (3009521927).

53013205321 is a wasteful number, since it uses less digits than its factorization.

53013205321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267852.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 53013205321 its reverse (12350231035), we get a palindrome (65363436356).

The spelling of 53013205321 in words is "fifty-three billion, thirteen million, two hundred five thousand, three hundred twenty-one".