50813728 has 48 divisors (see below), whose sum is σ = 117440064. Its totient is φ = 21185280.

The previous prime is 50813701. The next prime is 50813747. The reversal of 50813728 is 82731805.

It is a junction number, because it is equal to n+sod(n) for n = 50813693 and 50813702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5223 + ... + 11353.

It is an arithmetic number, because the mean of its divisors is an integer number (2446668).

Almost surely, 2^50813728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50813728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58720032).

50813728 is an abundant number, since it is smaller than the sum of its proper divisors (66626336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50813728 is a wasteful number, since it uses less digits than its factorization.

50813728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6185 (or 6177 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 50813728 is about 7128.3748498518. The cubic root of 50813728 is about 370.3909381447.

The spelling of 50813728 in words is "fifty million, eight hundred thirteen thousand, seven hundred twenty-eight".