52643065021 has 16 divisors (see below), whose sum is σ = 53877417984. Its totient is φ = 51424015104.

The previous prime is 52643064973. The next prime is 52643065031. The reversal of 52643065021 is 12056034625.

52643065021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 52643065021 - 2¹¹ = 52643062973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52643065031) 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, 5715606 + ... + 5724808.

It is an arithmetic number, because the mean of its divisors is an integer number (3367338624).

Almost surely, 2^52643065021 is an apocalyptic number.

It is an amenable number.

52643065021 is a deficient number, since it is larger than the sum of its proper divisors (1234352963).

52643065021 is a wasteful number, since it uses less digits than its factorization.

52643065021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10020.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 52643065021 its reverse (12056034625), we get a palindrome (64699099646).

The spelling of 52643065021 in words is "fifty-two billion, six hundred forty-three million, sixty-five thousand, twenty-one".