51043568 has 20 divisors (see below), whose sum is σ = 99015240. Its totient is φ = 25491264.

The previous prime is 51043561. The next prime is 51043579. The reversal of 51043568 is 86534015.

It is a happy number.

51043568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51043561) 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, 18503 + ... + 21081.

It is an arithmetic number, because the mean of its divisors is an integer number (4950762).

Almost surely, 2^51043568 is an apocalyptic number.

It is an amenable number.

51043568 is a deficient number, since it is larger than the sum of its proper divisors (47971672).

51043568 is a wasteful number, since it uses less digits than its factorization.

51043568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824 (or 3818 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 51043568 is about 7144.4781474926. The cubic root of 51043568 is about 370.9485474377.

The spelling of 51043568 in words is "fifty-one million, forty-three thousand, five hundred sixty-eight".