49881171 has 4 divisors (see below), whose sum is σ = 66508232. Its totient is φ = 33254112.

The previous prime is 49881163. The next prime is 49881187. The reversal of 49881171 is 17118894.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 49881171 - 2³ = 49881163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49881151) 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, 8313526 + ... + 8313531.

It is an arithmetic number, because the mean of its divisors is an integer number (16627058).

Almost surely, 2^49881171 is an apocalyptic number.

49881171 is a deficient number, since it is larger than the sum of its proper divisors (16627061).

49881171 is a wasteful number, since it uses less digits than its factorization.

49881171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16627060.

The product of its digits is 16128, while the sum is 39.

The square root of 49881171 is about 7062.6603344632. The cubic root of 49881171 is about 368.1110718401. Note that the first 3 decimals are identical.

The spelling of 49881171 in words is "forty-nine million, eight hundred eighty-one thousand, one hundred seventy-one".