50221331 has 4 divisors (see below), whose sum is σ = 51072600. Its totient is φ = 49370064.

The previous prime is 50221319. The next prime is 50221343. The reversal of 50221331 is 13312205.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (50221319) and next prime (50221343).

It is a cyclic number.

It is not a de Polignac number, because 50221331 - 2¹⁸ = 49959187 is a prime.

It is a super-2 number, since 2×50221331² = 5044364174823122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50221231) 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, 425546 + ... + 425663.

It is an arithmetic number, because the mean of its divisors is an integer number (12768150).

Almost surely, 2^50221331 is an apocalyptic number.

50221331 is a deficient number, since it is larger than the sum of its proper divisors (851269).

50221331 is an equidigital number, since it uses as much as digits as its factorization.

50221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851268.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 50221331 is about 7086.7009955268. The cubic root of 50221331 is about 368.9459433204.

Adding to 50221331 its reverse (13312205), we get a palindrome (63533536).

The spelling of 50221331 in words is "fifty million, two hundred twenty-one thousand, three hundred thirty-one".