49900191 has 8 divisors (see below), whose sum is σ = 72582144. Its totient is φ = 30242520.

The previous prime is 49900187. The next prime is 49900223. The reversal of 49900191 is 19100994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49900191 - 2² = 49900187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1512127 = 49900191 / (4 + 9 + 9 + 0 + 0 + 1 + 9 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49900141) 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 7 ways as a sum of consecutive naturals, for example, 756031 + ... + 756096.

It is an arithmetic number, because the mean of its divisors is an integer number (9072768).

Almost surely, 2^49900191 is an apocalyptic number.

49900191 is a deficient number, since it is larger than the sum of its proper divisors (22681953).

49900191 is a wasteful number, since it uses less digits than its factorization.

49900191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512141.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 49900191 is about 7064.0067242324. The cubic root of 49900191 is about 368.1578535731.

The spelling of 49900191 in words is "forty-nine million, nine hundred thousand, one hundred ninety-one".