50720256 has 100 divisors (see below), whose sum is σ = 151510392. Its totient is φ = 16892928.

The previous prime is 50720251. The next prime is 50720269. The reversal of 50720256 is 65202705.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50720251) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40861 + ... + 42083.

Almost surely, 2^50720256 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 50720256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75755196).

50720256 is an abundant number, since it is smaller than the sum of its proper divisors (100790136).

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

50720256 is an equidigital number, since it uses as much as digits as its factorization.

50720256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 50720256 is about 7121.8154988739. The cubic root of 50720256 is about 370.1636870097.

The spelling of 50720256 in words is "fifty million, seven hundred twenty thousand, two hundred fifty-six".