56518 has 16 divisors (see below), whose sum is σ = 105984. Its totient is φ = 21960.

The previous prime is 56509. The next prime is 56519. The reversal of 56518 is 81565.

56518 is nontrivially palindromic in base 5.

56518 is a modest number, since divided by 518 gives 56 as remainder.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 56492 and 56501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56519) by changing a digit.

56518 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30 + ... + 337.

It is an arithmetic number, because the mean of its divisors is an integer number (6624).

2⁵⁶⁵¹⁸ is an apocalyptic number.

56518 is a deficient number, since it is larger than the sum of its proper divisors (49466).

56518 is a wasteful number, since it uses less digits than its factorization.

56518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387.

The product of its digits is 1200, while the sum is 25.

The square root of 56518 is about 237.7351467495. The cubic root of 56518 is about 38.3762258801.

The spelling of 56518 in words is "fifty-six thousand, five hundred eighteen".