5143312520 has 64 divisors (see below), whose sum is σ = 11728206000. Its totient is φ = 2029805568.

The previous prime is 5143312513. The next prime is 5143312541. The reversal of 5143312520 is 252133415.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1133130244 + 4010182276 = 33662^2 + 63326^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5143312520.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032596 + ... + 1037564.

Almost surely, 2^5143312520 is an apocalyptic number.

It is an amenable number.

5143312520 is an abundant number, since it is smaller than the sum of its proper divisors (6584893480).

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

5143312520 is a wasteful number, since it uses less digits than its factorization.

5143312520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322 (or 5318 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 5143312520 is about 71716.8914552213. The cubic root of 5143312520 is about 1726.1596929101.

Adding to 5143312520 its reverse (252133415), we get a palindrome (5395445935).

The spelling of 5143312520 in words is "five billion, one hundred forty-three million, three hundred twelve thousand, five hundred twenty".