50149191 has 8 divisors (see below), whose sum is σ = 68496624. Its totient is φ = 32617280.

The previous prime is 50149157. The next prime is 50149193. The reversal of 50149191 is 19194105.

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

It is a cyclic number.

It is not a de Polignac number, because 50149191 - 2¹⁰ = 50148167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50149193) 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, 203736 + ... + 203981.

It is an arithmetic number, because the mean of its divisors is an integer number (8562078).

Almost surely, 2^50149191 is an apocalyptic number.

50149191 is a deficient number, since it is larger than the sum of its proper divisors (18347433).

50149191 is a wasteful number, since it uses less digits than its factorization.

50149191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407761.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 50149191 is about 7081.6093509880. The cubic root of 50149191 is about 368.7692022558.

The spelling of 50149191 in words is "fifty million, one hundred forty-nine thousand, one hundred ninety-one".