51682 has 4 divisors (see below), whose sum is σ = 77526. Its totient is φ = 25840.

The previous prime is 51679. The next prime is 51683. The reversal of 51682 is 28615.

It is a happy number.

51682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 47961 + 3721 = 219^2 + 61^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a pancake number, because a pancake can be divided into 51682 parts by 321 straight cuts.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12919 + ... + 12922.

2⁵¹⁶⁸² is an apocalyptic number.

51682 is a deficient number, since it is larger than the sum of its proper divisors (25844).

51682 is a wasteful number, since it uses less digits than its factorization.

51682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25843.

The product of its digits is 480, while the sum is 22.

The square root of 51682 is about 227.3367546175. The cubic root of 51682 is about 37.2488701367.

The spelling of 51682 in words is "fifty-one thousand, six hundred eighty-two".