49889171 has 2 divisors, whose sum is σ = 49889172. Its totient is φ = 49889170.

The previous prime is 49889141. The next prime is 49889173. The reversal of 49889171 is 17198894.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49889171 - 2⁶ = 49889107 is a prime.

Together with 49889173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49889173) 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 as a sum of consecutive naturals, namely, 24944585 + 24944586.

It is an arithmetic number, because the mean of its divisors is an integer number (24944586).

Almost surely, 2^49889171 is an apocalyptic number.

49889171 is a deficient number, since it is larger than the sum of its proper divisors (1).

49889171 is an equidigital number, since it uses as much as digits as its factorization.

49889171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 47.

The square root of 49889171 is about 7063.2266705805. The cubic root of 49889171 is about 368.1307501482.

The spelling of 49889171 in words is "forty-nine million, eight hundred eighty-nine thousand, one hundred seventy-one".