50551161 has 4 divisors (see below), whose sum is σ = 67401552. Its totient is φ = 33700772.

The previous prime is 50551159. The next prime is 50551177. The reversal of 50551161 is 16115505.

50551161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50551161 - 2¹ = 50551159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50551121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8425191 + ... + 8425196.

It is an arithmetic number, because the mean of its divisors is an integer number (16850388).

Almost surely, 2^50551161 is an apocalyptic number.

It is an amenable number.

50551161 is a deficient number, since it is larger than the sum of its proper divisors (16850391).

50551161 is a wasteful number, since it uses less digits than its factorization.

50551161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16850390.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 50551161 is about 7109.9339659381. The cubic root of 50551161 is about 369.7518691838.

Adding to 50551161 its reverse (16115505), we get a palindrome (66666666).

It can be divided in two parts, 5055 and 1161, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 50551161 in words is "fifty million, five hundred fifty-one thousand, one hundred sixty-one".