52305635721 has 8 divisors (see below), whose sum is σ = 69742883200. Its totient is φ = 34869406032.

The previous prime is 52305635689. The next prime is 52305635729. The reversal of 52305635721 is 12753650325.

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

It is not a de Polignac number, because 52305635721 - 2⁵ = 52305635689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52305635721.

It is not an unprimeable number, because it can be changed into a prime (52305635729) 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, 125146 + ... + 346803.

It is an arithmetic number, because the mean of its divisors is an integer number (8717860400).

Almost surely, 2^52305635721 is an apocalyptic number.

It is an amenable number.

52305635721 is a deficient number, since it is larger than the sum of its proper divisors (17437247479).

52305635721 is a wasteful number, since it uses less digits than its factorization.

52305635721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508895.

The product of its (nonzero) digits is 189000, while the sum is 39.

The spelling of 52305635721 in words is "fifty-two billion, three hundred five million, six hundred thirty-five thousand, seven hundred twenty-one".