50516221 has 8 divisors (see below), whose sum is σ = 57818880. Its totient is φ = 43235088.

The previous prime is 50516209. The next prime is 50516243. The reversal of 50516221 is 12261505.

50516221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50516221 - 2⁵ = 50516189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50516192 and 50516201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50516021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15 + ... + 10051.

It is an arithmetic number, because the mean of its divisors is an integer number (7227360).

Almost surely, 2^50516221 is an apocalyptic number.

It is an amenable number.

50516221 is a deficient number, since it is larger than the sum of its proper divisors (7302659).

50516221 is a wasteful number, since it uses less digits than its factorization.

50516221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10763.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 50516221 is about 7107.4764157189. The cubic root of 50516221 is about 369.6666610654. Note that the first 5 decimals are identical.

Adding to 50516221 its reverse (12261505), we get a palindrome (62777726).

The spelling of 50516221 in words is "fifty million, five hundred sixteen thousand, two hundred twenty-one".