51016568 has 32 divisors (see below), whose sum is σ = 100018800. Its totient is φ = 24364032.

The previous prime is 51016543. The next prime is 51016571. The reversal of 51016568 is 86561015.

It is a happy number.

51016568 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 an unprimeable number.

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, 21371 + ... + 23637.

Almost surely, 2^51016568 is an apocalyptic number.

51016568 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51016568 is a deficient number, since it is larger than the sum of its proper divisors (49002232).

51016568 is a wasteful number, since it uses less digits than its factorization.

51016568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 51016568 is about 7142.5883263702. The cubic root of 51016568 is about 370.8831302680.

The spelling of 51016568 in words is "fifty-one million, sixteen thousand, five hundred sixty-eight".