49881321 has 24 divisors (see below), whose sum is σ = 83903040. Its totient is φ = 27963936.

The previous prime is 49881317. The next prime is 49881341. The reversal of 49881321 is 12318894.

49881321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49881321 - 2² = 49881317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49881341) 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 23 ways as a sum of consecutive naturals, for example, 4131 + ... + 10808.

It is an arithmetic number, because the mean of its divisors is an integer number (3495960).

Almost surely, 2^49881321 is an apocalyptic number.

It is an amenable number.

49881321 is a deficient number, since it is larger than the sum of its proper divisors (34021719).

49881321 is a wasteful number, since it uses less digits than its factorization.

49881321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15005 (or 15002 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 49881321 is about 7062.6709536832. The cubic root of 49881321 is about 368.1114408278. Note that the first 3 decimals are identical.

The spelling of 49881321 in words is "forty-nine million, eight hundred eighty-one thousand, three hundred twenty-one".