49949191 has 4 divisors (see below), whose sum is σ = 49978584. Its totient is φ = 49919800.

The previous prime is 49949183. The next prime is 49949197. The reversal of 49949191 is 19194994.

49949191 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.

It is a cyclic number.

It is not a de Polignac number, because 49949191 - 2³ = 49949183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49949197) 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, 11980 + ... + 15601.

It is an arithmetic number, because the mean of its divisors is an integer number (12494646).

Almost surely, 2^49949191 is an apocalyptic number.

49949191 is a deficient number, since it is larger than the sum of its proper divisors (29393).

49949191 is a wasteful number, since it uses less digits than its factorization.

49949191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29392.

The product of its digits is 104976, while the sum is 46.

The square root of 49949191 is about 7067.4741598396. The cubic root of 49949191 is about 368.2783196002.

It can be divided in two parts, 4994 and 9191, that multiplied together give a palindrome (45899854).

The spelling of 49949191 in words is "forty-nine million, nine hundred forty-nine thousand, one hundred ninety-one".