51927866 has 8 divisors (see below), whose sum is σ = 78013044. Its totient is φ = 25923520.

The previous prime is 51927857. The next prime is 51927899. The reversal of 51927866 is 66872915.

51927866 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 44502241 + 7425625 = 6671^2 + 2725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 18575 + ... + 21186.

Almost surely, 2^51927866 is an apocalyptic number.

51927866 is a deficient number, since it is larger than the sum of its proper divisors (26085178).

51927866 is a wasteful number, since it uses less digits than its factorization.

51927866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40416.

The product of its digits is 181440, while the sum is 44.

The square root of 51927866 is about 7206.0992221867. The cubic root of 51927866 is about 373.0784454560.

The spelling of 51927866 in words is "fifty-one million, nine hundred twenty-seven thousand, eight hundred sixty-six".