50687728 has 80 divisors (see below), whose sum is σ = 124880896. Its totient is φ = 19388160.

The previous prime is 50687717. The next prime is 50687729. The reversal of 50687728 is 82778605.

It is a happy number.

50687728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50687729) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44575 + ... + 45697.

Almost surely, 2^50687728 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 50687728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62440448).

50687728 is an abundant number, since it is smaller than the sum of its proper divisors (74193168).

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

50687728 is a wasteful number, since it uses less digits than its factorization.

50687728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 50687728 is about 7119.5314452568. The cubic root of 50687728 is about 370.0845387544.

It can be divided in two parts, 50687 and 728, that added together give a palindrome (51415).

The spelling of 50687728 in words is "fifty million, six hundred eighty-seven thousand, seven hundred twenty-eight".