50536221 has 32 divisors (see below), whose sum is σ = 72744960. Its totient is φ = 31135104.

The previous prime is 50536217. The next prime is 50536253. The reversal of 50536221 is 12263505.

50536221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50536221 - 2² = 50536217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50536191 and 50536200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50536261) 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 31 ways as a sum of consecutive naturals, for example, 397860 + ... + 397986.

It is an arithmetic number, because the mean of its divisors is an integer number (2273280).

Almost surely, 2^50536221 is an apocalyptic number.

It is an amenable number.

50536221 is a deficient number, since it is larger than the sum of its proper divisors (22208739).

50536221 is a wasteful number, since it uses less digits than its factorization.

50536221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 50536221 is about 7108.8832456301. The cubic root of 50536221 is about 369.7154398377.

Adding to 50536221 its reverse (12263505), we get a palindrome (62799726).

The spelling of 50536221 in words is "fifty million, five hundred thirty-six thousand, two hundred twenty-one".