51703684 has 18 divisors (see below), whose sum is σ = 91415870. Its totient is φ = 25587552.

The previous prime is 51703679. The next prime is 51703709. The reversal of 51703684 is 48630715.

51703684 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 only one way, i.e., 33385284 + 18318400 = 5778^2 + 4280^2 .

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 5 ways as a sum of consecutive naturals, for example, 45232 + ... + 46360.

Almost surely, 2^51703684 is an apocalyptic number.

It is an amenable number.

51703684 is a deficient number, since it is larger than the sum of its proper divisors (39712186).

51703684 is a wasteful number, since it uses less digits than its factorization.

51703684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 51703684 is about 7190.5273798241. The cubic root of 51703684 is about 372.5407885909.

The spelling of 51703684 in words is "fifty-one million, seven hundred three thousand, six hundred eighty-four".