50228820 has 72 divisors (see below), whose sum is σ = 153336456. Its totient is φ = 13308672.

The previous prime is 50228819. The next prime is 50228833. The reversal of 50228820 is 2882205.

It can be written as a sum of positive squares in 4 ways, for example, as 17189316 + 33039504 = 4146^2 + 5748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30334 + ... + 31946.

It is an arithmetic number, because the mean of its divisors is an integer number (2129673).

Almost surely, 2^50228820 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 50228820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76668228).

50228820 is an abundant number, since it is smaller than the sum of its proper divisors (103107636).

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

50228820 is a wasteful number, since it uses less digits than its factorization.

50228820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 50228820 is about 7087.2293599121. The cubic root of 50228820 is about 368.9642814700.

The spelling of 50228820 in words is "fifty million, two hundred twenty-eight thousand, eight hundred twenty".