50821760 has 64 divisors (see below), whose sum is σ = 132559200. Its totient is φ = 18478080.

The previous prime is 50821739. The next prime is 50821777. The reversal of 50821760 is 6712805.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3431 + ... + 10649.

Almost surely, 2^50821760 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 50821760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66279600).

50821760 is an abundant number, since it is smaller than the sum of its proper divisors (81737440).

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

50821760 is a wasteful number, since it uses less digits than its factorization.

50821760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7249 (or 7237 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 50821760 is about 7128.9382098599. The cubic root of 50821760 is about 370.4104527090.

The spelling of 50821760 in words is "fifty million, eight hundred twenty-one thousand, seven hundred sixty".