50822161 has 4 divisors (see below), whose sum is σ = 54731572. Its totient is φ = 46912752.

The previous prime is 50822159. The next prime is 50822171. The reversal of 50822161 is 16122805.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24196561 + 26625600 = 4919^2 + 5160^2 .

It is a cyclic number.

It is not a de Polignac number, because 50822161 - 2¹ = 50822159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50822141) 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, 1954686 + ... + 1954711.

It is an arithmetic number, because the mean of its divisors is an integer number (13682893).

Almost surely, 2^50822161 is an apocalyptic number.

It is an amenable number.

50822161 is a deficient number, since it is larger than the sum of its proper divisors (3909411).

50822161 is a wasteful number, since it uses less digits than its factorization.

50822161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909410.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 50822161 is about 7128.9663346098. The cubic root of 50822161 is about 370.4114269255.

Adding to 50822161 its reverse (16122805), we get a palindrome (66944966).

The spelling of 50822161 in words is "fifty million, eight hundred twenty-two thousand, one hundred sixty-one".