50572728 has 64 divisors (see below), whose sum is σ = 141588000. Its totient is φ = 16724736.

The previous prime is 50572727. The next prime is 50572729. The reversal of 50572728 is 82727505.

50572728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (50572727) and next prime (50572729).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 50572692 and 50572701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50572727) 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, 28738 + ... + 30446.

Almost surely, 2^50572728 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 50572728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70794000).

50572728 is an abundant number, since it is smaller than the sum of its proper divisors (91015272).

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

50572728 is a wasteful number, since it uses less digits than its factorization.

50572728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861 (or 1851 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 50572728 is about 7111.4504849573. The cubic root of 50572728 is about 369.8044449942.

The spelling of 50572728 in words is "fifty million, five hundred seventy-two thousand, seven hundred twenty-eight".