52663544621 has 8 divisors (see below), whose sum is σ = 53134307424. Its totient is φ = 52193823760.

The previous prime is 52663544597. The next prime is 52663544623. The reversal of 52663544621 is 12644536625.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52663544621 - 2²⁶ = 52596435757 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 (52663544623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158771 + ... + 361296.

It is an arithmetic number, because the mean of its divisors is an integer number (6641788428).

Almost surely, 2^52663544621 is an apocalyptic number.

It is an amenable number.

52663544621 is a deficient number, since it is larger than the sum of its proper divisors (470762803).

52663544621 is a wasteful number, since it uses less digits than its factorization.

52663544621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520971.

The product of its digits is 1036800, while the sum is 44.

The spelling of 52663544621 in words is "fifty-two billion, six hundred sixty-three million, five hundred forty-four thousand, six hundred twenty-one".