50006221 has 4 divisors (see below), whose sum is σ = 50047200. Its totient is φ = 49965244.

The previous prime is 50006219. The next prime is 50006239. The reversal of 50006221 is 12260005.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50006221 - 2¹ = 50006219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50006195 and 50006204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50000221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18601 + ... + 21118.

It is an arithmetic number, because the mean of its divisors is an integer number (12511800).

Almost surely, 2^50006221 is an apocalyptic number.

It is an amenable number.

50006221 is a deficient number, since it is larger than the sum of its proper divisors (40979).

50006221 is a wasteful number, since it uses less digits than its factorization.

50006221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40978.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 50006221 is about 7071.5076893121. The cubic root of 50006221 is about 368.4184281371.

Adding to 50006221 its reverse (12260005), we get a palindrome (62266226).

The spelling of 50006221 in words is "fifty million, six thousand, two hundred twenty-one".