50855771 has 4 divisors (see below), whose sum is σ = 50947632. Its totient is φ = 50763912.

The previous prime is 50855767. The next prime is 50855801. The reversal of 50855771 is 17755805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17755805 = 5 ⋅3551161.

It is a cyclic number.

It is not a de Polignac number, because 50855771 - 2² = 50855767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50855711) 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, 45095 + ... + 46208.

It is an arithmetic number, because the mean of its divisors is an integer number (12736908).

Almost surely, 2^50855771 is an apocalyptic number.

50855771 is a deficient number, since it is larger than the sum of its proper divisors (91861).

50855771 is an equidigital number, since it uses as much as digits as its factorization.

50855771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91860.

The product of its (nonzero) digits is 49000, while the sum is 38.

The square root of 50855771 is about 7131.3232292472. The cubic root of 50855771 is about 370.4930631279.

The spelling of 50855771 in words is "fifty million, eight hundred fifty-five thousand, seven hundred seventy-one".