50781168 has 120 divisors (see below), whose sum is σ = 151792368. Its totient is φ = 16422912.

The previous prime is 50781161. The next prime is 50781169. The reversal of 50781168 is 86118705.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50781161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143680 + ... + 144032.

Almost surely, 2^50781168 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 50781168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75896184).

50781168 is an abundant number, since it is smaller than the sum of its proper divisors (101011200).

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

50781168 is a wasteful number, since it uses less digits than its factorization.

50781168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 50781168 is about 7126.0906533667. The cubic root of 50781168 is about 370.3118092280.

The spelling of 50781168 in words is "fifty million, seven hundred eighty-one thousand, one hundred sixty-eight".