50221133 has 2 divisors, whose sum is σ = 50221134. Its totient is φ = 50221132.

The previous prime is 50221103. The next prime is 50221159. The reversal of 50221133 is 33112205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49815364 + 405769 = 7058^2 + 637^2 .

It is a cyclic number.

It is not a de Polignac number, because 50221133 - 2¹⁸ = 49958989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50221103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25110566 + 25110567.

It is an arithmetic number, because the mean of its divisors is an integer number (25110567).

Almost surely, 2^50221133 is an apocalyptic number.

It is an amenable number.

50221133 is a deficient number, since it is larger than the sum of its proper divisors (1).

50221133 is an equidigital number, since it uses as much as digits as its factorization.

50221133 is an evil number, because the sum of its binary digits is even.

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

The square root of 50221133 is about 7086.6870256841. The cubic root of 50221133 is about 368.9454584575.

Adding to 50221133 its reverse (33112205), we get a palindrome (83333338).

The spelling of 50221133 in words is "fifty million, two hundred twenty-one thousand, one hundred thirty-three".