50782720 has 80 divisors (see below), whose sum is σ = 123742080. Its totient is φ = 19984384.

The previous prime is 50782709. The next prime is 50782727. The reversal of 50782720 is 2728705.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (50782727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212361 + ... + 212599.

It is an arithmetic number, because the mean of its divisors is an integer number (1546776).

Almost surely, 2^50782720 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 50782720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61871040).

50782720 is an abundant number, since it is smaller than the sum of its proper divisors (72959360).

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

50782720 is an equidigital number, since it uses as much as digits as its factorization.

50782720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 50782720 is about 7126.1995481463. The cubic root of 50782720 is about 370.3155817425.

The spelling of 50782720 in words is "fifty million, seven hundred eighty-two thousand, seven hundred twenty".