51304866 has 32 divisors (see below), whose sum is σ = 107196480. Its totient is φ = 16353216.

The previous prime is 51304859. The next prime is 51304889. The reversal of 51304866 is 66840315.

51304866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 11140 + ... + 15056.

It is an arithmetic number, because the mean of its divisors is an integer number (3349890).

Almost surely, 2^51304866 is an apocalyptic number.

51304866 is an abundant number, since it is smaller than the sum of its proper divisors (55891614).

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

51304866 is a wasteful number, since it uses less digits than its factorization.

51304866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 51304866 is about 7162.7415142528. The cubic root of 51304866 is about 371.5804467521.

The spelling of 51304866 in words is "fifty-one million, three hundred four thousand, eight hundred sixty-six".