50721875 has 12 divisors (see below), whose sum is σ = 63402192. Its totient is φ = 40575000.

The previous prime is 50721821. The next prime is 50721889. The reversal of 50721875 is 57812705.

50721875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-50721875 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4991 + ... + 11240.

It is an arithmetic number, because the mean of its divisors is an integer number (5283516).

Almost surely, 2^50721875 is an apocalyptic number.

50721875 is a deficient number, since it is larger than the sum of its proper divisors (12680317).

50721875 is an frugal number, since it uses more digits than its factorization.

50721875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16256 (or 16236 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 50721875 is about 7121.9291628041. The cubic root of 50721875 is about 370.1676255324.

The spelling of 50721875 in words is "fifty million, seven hundred twenty-one thousand, eight hundred seventy-five".