50565871 has 4 divisors (see below), whose sum is σ = 53540352. Its totient is φ = 47591392.

The previous prime is 50565857. The next prime is 50565883. The reversal of 50565871 is 17856505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50565871 - 2²³ = 42177263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50565871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50565071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487215 + ... + 1487248.

It is an arithmetic number, because the mean of its divisors is an integer number (13385088).

Almost surely, 2^50565871 is an apocalyptic number.

50565871 is a deficient number, since it is larger than the sum of its proper divisors (2974481).

50565871 is a wasteful number, since it uses less digits than its factorization.

50565871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974480.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 50565871 is about 7110.9683588102. The cubic root of 50565871 is about 369.7877306913.

The spelling of 50565871 in words is "fifty million, five hundred sixty-five thousand, eight hundred seventy-one".