50643216 has 90 divisors (see below), whose sum is σ = 153545418. Its totient is φ = 15575040.

The previous prime is 50643211. The next prime is 50643259. The reversal of 50643216 is 61234605.

50643216 is a `hidden beast` number, since 5 + 0 + 643 + 2 + 16 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 176400 + 50466816 = 420^2 + 7104^2 .

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 50643216.

It is not an unprimeable number, because it can be changed into a prime (50643211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23296 + ... + 25376.

Almost surely, 2^50643216 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 50643216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76772709).

50643216 is an abundant number, since it is smaller than the sum of its proper divisors (102902202).

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

50643216 is a wasteful number, since it uses less digits than its factorization.

50643216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121 (or 2099 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 50643216 is about 7116.4047102452. The cubic root of 50643216 is about 369.9761757243.

The spelling of 50643216 in words is "fifty million, six hundred forty-three thousand, two hundred sixteen".