50820840 has 288 divisors, whose sum is σ = 199536480. Its totient is φ = 11176704.

The previous prime is 50820793. The next prime is 50820841. The reversal of 50820840 is 4802805.

It is not an unprimeable number, because it can be changed into a prime (50820841) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 758487 + ... + 758553.

It is an arithmetic number, because the mean of its divisors is an integer number (692835).

Almost surely, 2^50820840 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 50820840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99768240).

50820840 is an abundant number, since it is smaller than the sum of its proper divisors (148715640).

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

50820840 is a wasteful number, since it uses less digits than its factorization.

50820840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 127 counting only the distinct ones).

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

The square root of 50820840 is about 7128.8736838297. The cubic root of 50820840 is about 370.4082175793.

The spelling of 50820840 in words is "fifty million, eight hundred twenty thousand, eight hundred forty".