50911871 has 4 divisors (see below), whose sum is σ = 52095912. Its totient is φ = 49727832.

The previous prime is 50911837. The next prime is 50911877. The reversal of 50911871 is 17811905.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17811905 = 5 ⋅3562381.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50911871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50911877) 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, 591956 + ... + 592041.

It is an arithmetic number, because the mean of its divisors is an integer number (13023978).

Almost surely, 2^50911871 is an apocalyptic number.

50911871 is a deficient number, since it is larger than the sum of its proper divisors (1184041).

50911871 is a wasteful number, since it uses less digits than its factorization.

50911871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184040.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 50911871 is about 7135.2554964766. The cubic root of 50911871 is about 370.6292457903.

The spelling of 50911871 in words is "fifty million, nine hundred eleven thousand, eight hundred seventy-one".