50185728 has 60 divisors (see below), whose sum is σ = 144852708. Its totient is φ = 16727040.

The previous prime is 50185721. The next prime is 50185739. The reversal of 50185728 is 82758105.

50185728 is a `hidden beast` number, since 501 + 85 + 72 + 8 = 666.

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 = 50185692 and 50185701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50185721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 838 + ... + 10053.

Almost surely, 2^50185728 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 50185728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72426354).

50185728 is an abundant number, since it is smaller than the sum of its proper divisors (94666980).

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

50185728 is a wasteful number, since it uses less digits than its factorization.

50185728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10915 (or 10896 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 50185728 is about 7084.1885915043. The cubic root of 50185728 is about 368.8587380937.

The spelling of 50185728 in words is "fifty million, one hundred eighty-five thousand, seven hundred twenty-eight".