5631310520 has 128 divisors (see below), whose sum is σ = 14837307840. Its totient is φ = 1900707840.

The previous prime is 5631310507. The next prime is 5631310541. The reversal of 5631310520 is 250131365.

It is a self number, because there is not a number n which added to its sum of digits gives 5631310520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 540884 + ... + 551196.

Almost surely, 2^5631310520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5631310520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7418653920).

5631310520 is an abundant number, since it is smaller than the sum of its proper divisors (9205997320).

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

5631310520 is a wasteful number, since it uses less digits than its factorization.

5631310520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10425 (or 10421 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 5631310520 is about 75042.0583406399. The cubic root of 5631310520 is about 1779.1114658091. Note that the first 3 decimals are identical.

Adding to 5631310520 its reverse (250131365), we get a palindrome (5881441885).

The spelling of 5631310520 in words is "five billion, six hundred thirty-one million, three hundred ten thousand, five hundred twenty".