50411221 has 16 divisors (see below), whose sum is σ = 58791168. Its totient is φ = 42336000.

The previous prime is 50411209. The next prime is 50411227. The reversal of 50411221 is 12211405.

50411221 = 204² + 205² + ... + 542².

It is not a de Polignac number, because 50411221 - 2⁹ = 50410709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50411195 and 50411204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50411227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79576 + ... + 80206.

It is an arithmetic number, because the mean of its divisors is an integer number (3674448).

Almost surely, 2^50411221 is an apocalyptic number.

It is an amenable number.

50411221 is a deficient number, since it is larger than the sum of its proper divisors (8379947).

50411221 is a wasteful number, since it uses less digits than its factorization.

50411221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 50411221 is about 7100.0859853948. The cubic root of 50411221 is about 369.4103610586.

Adding to 50411221 its reverse (12211405), we get a palindrome (62622626).

The spelling of 50411221 in words is "fifty million, four hundred eleven thousand, two hundred twenty-one".