50857147 has 6 divisors (see below), whose sum is σ = 55900964. Its totient is φ = 46233660.

The previous prime is 50857139. The next prime is 50857151. The reversal of 50857147 is 74175805.

It is not a de Polignac number, because 50857147 - 2³ = 50857139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50857187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210033 + ... + 210274.

Almost surely, 2^50857147 is an apocalyptic number.

50857147 is a deficient number, since it is larger than the sum of its proper divisors (5043817).

50857147 is a wasteful number, since it uses less digits than its factorization.

50857147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420329 (or 420318 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 50857147 is about 7131.4197043786. The cubic root of 50857147 is about 370.4964045636.

The spelling of 50857147 in words is "fifty million, eight hundred fifty-seven thousand, one hundred forty-seven".