51704866 has 8 divisors (see below), whose sum is σ = 77991120. Its totient is φ = 25707828.

The previous prime is 51704819. The next prime is 51704911. The reversal of 51704866 is 66840715.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71856 + ... + 72571.

It is an arithmetic number, because the mean of its divisors is an integer number (9748890).

Almost surely, 2^51704866 is an apocalyptic number.

51704866 is a deficient number, since it is larger than the sum of its proper divisors (26286254).

51704866 is a wasteful number, since it uses less digits than its factorization.

51704866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144608.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 51704866 is about 7190.6095708222. The cubic root of 51704866 is about 372.5436274592.

The spelling of 51704866 in words is "fifty-one million, seven hundred four thousand, eight hundred sixty-six".