51575144 has 32 divisors (see below), whose sum is σ = 103566600. Its totient is φ = 23992320.

The previous prime is 51575141. The next prime is 51575149. The reversal of 51575144 is 44157515.

51575144 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 4 ways, for example, as 50951044 + 624100 = 7138^2 + 790^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51575144.

It is not an unprimeable number, because it can be changed into a prime (51575141) 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 7 ways as a sum of consecutive naturals, for example, 9974 + ... + 14234.

Almost surely, 2^51575144 is an apocalyptic number.

It is an amenable number.

51575144 is an abundant number, since it is smaller than the sum of its proper divisors (51991456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51575144 is a wasteful number, since it uses less digits than its factorization.

51575144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373 (or 4369 counting only the distinct ones).

The product of its digits is 14000, while the sum is 32.

The square root of 51575144 is about 7181.5836693587. The cubic root of 51575144 is about 372.2318091175.

It can be divided in two parts, 5157 and 5144, that added together give a palindrome (10301).

The spelling of 51575144 in words is "fifty-one million, five hundred seventy-five thousand, one hundred forty-four".