50812720 has 80 divisors (see below), whose sum is σ = 139419648. Its totient is φ = 16853760.

The previous prime is 50812679. The next prime is 50812739. The reversal of 50812720 is 2721805.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15897 + ... + 18823.

Almost surely, 2^50812720 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 50812720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69709824).

50812720 is an abundant number, since it is smaller than the sum of its proper divisors (88606928).

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

50812720 is a wasteful number, since it uses less digits than its factorization.

50812720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 50812720 is about 7128.3041461486. The cubic root of 50812720 is about 370.3884889605.

The spelling of 50812720 in words is "fifty million, eight hundred twelve thousand, seven hundred twenty".