50043621 has 4 divisors (see below), whose sum is σ = 66724832. Its totient is φ = 33362412.

The previous prime is 50043611. The next prime is 50043661. The reversal of 50043621 is 12634005.

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 not a de Polignac number, because 50043621 - 2¹⁸ = 49781477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50043601) 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, 8340601 + ... + 8340606.

It is an arithmetic number, because the mean of its divisors is an integer number (16681208).

Almost surely, 2^50043621 is an apocalyptic number.

It is an amenable number.

50043621 is a deficient number, since it is larger than the sum of its proper divisors (16681211).

50043621 is a wasteful number, since it uses less digits than its factorization.

50043621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16681210.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 50043621 is about 7074.1516099105. The cubic root of 50043621 is about 368.5102528158.

Adding to 50043621 its reverse (12634005), we get a palindrome (62677626).

The spelling of 50043621 in words is "fifty million, forty-three thousand, six hundred twenty-one".