51316 has 6 divisors (see below), whose sum is σ = 89810. Its totient is φ = 25656.

The previous prime is 51307. The next prime is 51329. The reversal of 51316 is 61315.

It can be written as a sum of positive squares in only one way, i.e., 48400 + 2916 = 220^2 + 54^2 .

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 51316.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6411 + ... + 6418.

2⁵¹³¹⁶ is an apocalyptic number.

It is an amenable number.

51316 is a deficient number, since it is larger than the sum of its proper divisors (38494).

51316 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 51316 = (35611)₁₁.

51316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12833 (or 12831 counting only the distinct ones).

The product of its digits is 90, while the sum is 16.

The square root of 51316 is about 226.5303511673. The cubic root of 51316 is about 37.1607324498.

Subtracting 51316 from its reverse (61315), we obtain a palindrome (9999).

It can be divided in two parts, 513 and 16, that added together give a square (529 = 23²).

The spelling of 51316 in words is "fifty-one thousand, three hundred sixteen".