51044164 has 12 divisors (see below), whose sum is σ = 91741804. Its totient is φ = 24832224.

The previous prime is 51044159. The next prime is 51044167. The reversal of 51044164 is 46144015.

51044164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 49112064 + 1932100 = 7008^2 + 1390^2 .

It is not an unprimeable number, because it can be changed into a prime (51044167) 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, 172299 + ... + 172594.

Almost surely, 2^51044164 is an apocalyptic number.

It is an amenable number.

51044164 is a deficient number, since it is larger than the sum of its proper divisors (40697640).

51044164 is a wasteful number, since it uses less digits than its factorization.

51044164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344934 (or 344932 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 51044164 is about 7144.5198579051. The cubic root of 51044164 is about 370.9499912009.

Adding to 51044164 its reverse (46144015), we get a palindrome (97188179).

The spelling of 51044164 in words is "fifty-one million, forty-four thousand, one hundred sixty-four".