50821056 has 168 divisors, whose sum is σ = 171413424. Its totient is φ = 14192640.

The previous prime is 50821051. The next prime is 50821063. The reversal of 50821056 is 65012805.

50821056 = T₃₅₃ + T₃₅₄ + ... + T₇₀₃.

50821056 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 (50821051) 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 23 ways as a sum of consecutive naturals, for example, 82060 + ... + 82676.

It is an arithmetic number, because the mean of its divisors is an integer number (1020318).

Almost surely, 2^50821056 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 50821056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85706712).

50821056 is an abundant number, since it is smaller than the sum of its proper divisors (120592368).

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

50821056 is a wasteful number, since it uses less digits than its factorization.

50821056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 50821056 is about 7128.8888334719. Note that the first 4 decimals coincide. The cubic root of 50821056 is about 370.4087423513.

The spelling of 50821056 in words is "fifty million, eight hundred twenty-one thousand, fifty-six".