51685382 has 8 divisors (see below), whose sum is σ = 88603536. Its totient is φ = 22150872.

The previous prime is 51685369. The next prime is 51685397. The reversal of 51685382 is 28358615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845893 + ... + 1845920.

It is an arithmetic number, because the mean of its divisors is an integer number (11075442).

Almost surely, 2^51685382 is an apocalyptic number.

51685382 is a deficient number, since it is larger than the sum of its proper divisors (36918154).

51685382 is a wasteful number, since it uses less digits than its factorization.

51685382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691822.

The product of its digits is 57600, while the sum is 38.

The square root of 51685382 is about 7189.2546206126. The cubic root of 51685382 is about 372.4968262420.

The spelling of 51685382 in words is "fifty-one million, six hundred eighty-five thousand, three hundred eighty-two".