52824748721 has 4 divisors (see below), whose sum is σ = 52828064832. Its totient is φ = 52821432612.

The previous prime is 52824748699. The next prime is 52824748741. The reversal of 52824748721 is 12784742825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52824748721 - 2³⁰ = 51751006897 is a prime.

It is a super-2 number, since 2×52824748721² (a number of 22 digits) contains 22 as substring.

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 52824748721.

It is not an unprimeable number, because it can be changed into a prime (52824748741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1634045 + ... + 1666058.

It is an arithmetic number, because the mean of its divisors is an integer number (13207016208).

Almost surely, 2^52824748721 is an apocalyptic number.

It is an amenable number.

52824748721 is a deficient number, since it is larger than the sum of its proper divisors (3316111).

52824748721 is a wasteful number, since it uses less digits than its factorization.

52824748721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3316110.

The product of its digits is 2007040, while the sum is 50.

The spelling of 52824748721 in words is "fifty-two billion, eight hundred twenty-four million, seven hundred forty-eight thousand, seven hundred twenty-one".