49944221 has 4 divisors (see below), whose sum is σ = 51006912. Its totient is φ = 48881532.

The previous prime is 49944203. The next prime is 49944227. The reversal of 49944221 is 12244994.

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 a cyclic number.

It is not a de Polignac number, because 49944221 - 2⁶ = 49944157 is a prime.

It is a super-2 number, since 2×49944221² = 4988850422593682, which contains 22 as substring.

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 (49944227) 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, 531275 + ... + 531368.

It is an arithmetic number, because the mean of its divisors is an integer number (12751728).

Almost surely, 2^49944221 is an apocalyptic number.

It is an amenable number.

49944221 is a deficient number, since it is larger than the sum of its proper divisors (1062691).

49944221 is a wasteful number, since it uses less digits than its factorization.

49944221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062690.

The product of its digits is 20736, while the sum is 35.

The square root of 49944221 is about 7067.1225403271. The cubic root of 49944221 is about 368.2661044944.

The spelling of 49944221 in words is "forty-nine million, nine hundred forty-four thousand, two hundred twenty-one".