49540191 has 8 divisors (see below), whose sum is σ = 66115584. Its totient is φ = 32995800.

The previous prime is 49540157. The next prime is 49540223. The reversal of 49540191 is 19104594.

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

It is not a de Polignac number, because 49540191 - 2¹⁰ = 49539167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49540111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3721 + ... + 10626.

It is an arithmetic number, because the mean of its divisors is an integer number (8264448).

Almost surely, 2^49540191 is an apocalyptic number.

49540191 is a deficient number, since it is larger than the sum of its proper divisors (16575393).

49540191 is a wasteful number, since it uses less digits than its factorization.

49540191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15501.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 49540191 is about 7038.4793101919. The cubic root of 49540191 is about 367.2703697588.

The spelling of 49540191 in words is "forty-nine million, five hundred forty thousand, one hundred ninety-one".