51683683 has 4 divisors (see below), whose sum is σ = 51943600. Its totient is φ = 51423768.

The previous prime is 51683651. The next prime is 51683717. The reversal of 51683683 is 38638615.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51683683 - 2⁵ = 51683651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51683633) by changing a digit.

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, 129660 + ... + 130057.

It is an arithmetic number, because the mean of its divisors is an integer number (12985900).

Almost surely, 2^51683683 is an apocalyptic number.

51683683 is a deficient number, since it is larger than the sum of its proper divisors (259917).

51683683 is a wasteful number, since it uses less digits than its factorization.

51683683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259916.

The product of its digits is 103680, while the sum is 40.

The square root of 51683683 is about 7189.1364571832. The cubic root of 51683683 is about 372.4927446299.

The spelling of 51683683 in words is "fifty-one million, six hundred eighty-three thousand, six hundred eighty-three".