50130221 has 4 divisors (see below), whose sum is σ = 50144832. Its totient is φ = 50115612.

The previous prime is 50130187. The next prime is 50130251. The reversal of 50130221 is 12203105.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12203105 = 5 ⋅2440621.

It is a cyclic number.

It is not a de Polignac number, because 50130221 - 2²² = 45935917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50130196 and 50130205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50130251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956 + ... + 10058.

It is an arithmetic number, because the mean of its divisors is an integer number (12536208).

Almost surely, 2^50130221 is an apocalyptic number.

It is an amenable number.

50130221 is a deficient number, since it is larger than the sum of its proper divisors (14611).

50130221 is an equidigital number, since it uses as much as digits as its factorization.

50130221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14610.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 50130221 is about 7080.2698394906. The cubic root of 50130221 is about 368.7226981223.

Adding to 50130221 its reverse (12203105), we get a palindrome (62333326).

The spelling of 50130221 in words is "fifty million, one hundred thirty thousand, two hundred twenty-one".