51838684 has 12 divisors (see below), whose sum is σ = 90828864. Its totient is φ = 25887584.

The previous prime is 51838663. The next prime is 51838723. The reversal of 51838684 is 48683815.

It is a self number, because there is not a number n which added to its sum of digits gives 51838684.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4057 + ... + 10960.

It is an arithmetic number, because the mean of its divisors is an integer number (7569072).

Almost surely, 2^51838684 is an apocalyptic number.

It is an amenable number.

51838684 is a deficient number, since it is larger than the sum of its proper divisors (38990180).

51838684 is a wasteful number, since it uses less digits than its factorization.

51838684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884 (or 15882 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 51838684 is about 7199.9086105311. The cubic root of 51838684 is about 372.8647455041.

The spelling of 51838684 in words is "fifty-one million, eight hundred thirty-eight thousand, six hundred eighty-four".