49771911 has 16 divisors (see below), whose sum is σ = 76884224. Its totient is φ = 28050624.

The previous prime is 49771901. The next prime is 49771921. The reversal of 49771911 is 11917794.

It is an interprime number because it is at equal distance from previous prime (49771901) and next prime (49771921).

It is not a de Polignac number, because 49771911 - 2⁷ = 49771783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49771911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49771901) 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 in 15 ways as a sum of consecutive naturals, for example, 14701 + ... + 17766.

It is an arithmetic number, because the mean of its divisors is an integer number (4805264).

Almost surely, 2^49771911 is an apocalyptic number.

49771911 is a deficient number, since it is larger than the sum of its proper divisors (27112313).

49771911 is a wasteful number, since it uses less digits than its factorization.

49771911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32550.

The product of its digits is 15876, while the sum is 39.

The square root of 49771911 is about 7054.9210484597. The cubic root of 49771911 is about 367.8421045017.

The spelling of 49771911 in words is "forty-nine million, seven hundred seventy-one thousand, nine hundred eleven".