50221143 has 12 divisors (see below), whose sum is σ = 82904848. Its totient is φ = 28697760.

The previous prime is 50221133. The next prime is 50221159. The reversal of 50221143 is 34112205.

50221143 is a `hidden beast` number, since 502 + 21 + 143 = 666.

It is not a de Polignac number, because 50221143 - 2⁸ = 50220887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50221103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398518 + ... + 398643.

Almost surely, 2^50221143 is an apocalyptic number.

50221143 is a deficient number, since it is larger than the sum of its proper divisors (32683705).

50221143 is a wasteful number, since it uses less digits than its factorization.

50221143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797174 (or 797171 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 50221143 is about 7086.6877312324. The cubic root of 50221143 is about 368.9454829455.

Adding to 50221143 its reverse (34112205), we get a palindrome (84333348).

The spelling of 50221143 in words is "fifty million, two hundred twenty-one thousand, one hundred forty-three".