50291147 has 4 divisors (see below), whose sum is σ = 50443416. Its totient is φ = 50138880.

The previous prime is 50291107. The next prime is 50291159. The reversal of 50291147 is 74119205.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74119205 = 5 ⋅14823841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50291147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50291107) 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 3 ways as a sum of consecutive naturals, for example, 75638 + ... + 76299.

It is an arithmetic number, because the mean of its divisors is an integer number (12610854).

Almost surely, 2^50291147 is an apocalyptic number.

50291147 is a deficient number, since it is larger than the sum of its proper divisors (152269).

50291147 is a wasteful number, since it uses less digits than its factorization.

50291147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152268.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 50291147 is about 7091.6251310965. The cubic root of 50291147 is about 369.1168295591.

The spelling of 50291147 in words is "fifty million, two hundred ninety-one thousand, one hundred forty-seven".