53318 has 8 divisors (see below), whose sum is σ = 81648. Its totient is φ = 26104.

The previous prime is 53309. The next prime is 53323. The reversal of 53318 is 81335.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53318.

It is a congruent number.

It is an unprimeable number.

53318 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 3 ways as a sum of consecutive naturals, for example, 146 + ... + 357.

It is an arithmetic number, because the mean of its divisors is an integer number (10206).

2⁵³³¹⁸ is an apocalyptic number.

53318 is a deficient number, since it is larger than the sum of its proper divisors (28330).

53318 is a wasteful number, since it uses less digits than its factorization.

53318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558.

The product of its digits is 360, while the sum is 20.

The square root of 53318 is about 230.9069076489. The cubic root of 53318 is about 37.6378335047.

The spelling of 53318 in words is "fifty-three thousand, three hundred eighteen".