5315531204520 has 48 divisors (see below), whose sum is σ = 17275476415860. Its totient is φ = 1417474987776.

The previous prime is 5315531204443. The next prime is 5315531204549. The reversal of 5315531204520 is 254021355135.

5315531204520 is a `hidden beast` number, since 5 + 3 + 1 + 5 + 5 + 3 + 120 + 4 + 520 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5054322305124 + 261208899396 = 2248182^2 + 511086^2 .

It is a super-3 number, since 3×5315531204520³ (a number of 39 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7382681869 + ... + 7382682588.

Almost surely, 2^{5315531204520} is an apocalyptic number.

It is an amenable number.

5315531204520 is an abundant number, since it is smaller than the sum of its proper divisors (11959945211340).

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

5315531204520 is a wasteful number, since it uses less digits than its factorization.

5315531204520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14765364474 (or 14765364467 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 5315531204520 its reverse (254021355135), we get a palindrome (5569552559655).

The spelling of 5315531204520 in words is "five trillion, three hundred fifteen billion, five hundred thirty-one million, two hundred four thousand, five hundred twenty".