5631318 has 96 divisors (see below), whose sum is σ = 16174080. Its totient is φ = 1370880.

The previous prime is 5631317. The next prime is 5631341. The reversal of 5631318 is 8131365.

It is a junction number, because it is equal to n+sod(n) for n = 5631291 and 5631300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631317) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23443 + ... + 23681.

It is an arithmetic number, because the mean of its divisors is an integer number (168480).

Almost surely, 2^5631318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5631318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8087040).

5631318 is an abundant number, since it is smaller than the sum of its proper divisors (10542762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5631318 is a wasteful number, since it uses less digits than its factorization.

5631318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 279 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 5631318 is about 2373.0398226747. The cubic root of 5631318 is about 177.9112253533.

It can be divided in two parts, 563 and 1318, that added together give a palindrome (1881).

The spelling of 5631318 in words is "five million, six hundred thirty-one thousand, three hundred eighteen".