49822221 has 4 divisors (see below), whose sum is σ = 66429632. Its totient is φ = 33214812.

The previous prime is 49822217. The next prime is 49822249. The reversal of 49822221 is 12222894.

49822221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 49822221 - 2² = 49822217 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 (49822211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8303701 + ... + 8303706.

It is an arithmetic number, because the mean of its divisors is an integer number (16607408).

Almost surely, 2^49822221 is an apocalyptic number.

It is an amenable number.

49822221 is a deficient number, since it is larger than the sum of its proper divisors (16607411).

49822221 is a wasteful number, since it uses less digits than its factorization.

49822221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16607410.

The product of its digits is 4608, while the sum is 30.

The square root of 49822221 is about 7058.4857441239. The cubic root of 49822221 is about 367.9660023925.

The spelling of 49822221 in words is "forty-nine million, eight hundred twenty-two thousand, two hundred twenty-one".