5431232520 has 384 divisors, whose sum is σ = 21792240000. Its totient is φ = 1198278144.

The previous prime is 5431232507. The next prime is 5431232531. The reversal of 5431232520 is 252321345.

It is a happy number.

5431232520 is a `hidden beast` number, since 5 + 4 + 312 + 325 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1532911 + ... + 1536449.

It is an arithmetic number, because the mean of its divisors is an integer number (56750625).

Almost surely, 2^5431232520 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 5431232520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10896120000).

5431232520 is an abundant number, since it is smaller than the sum of its proper divisors (16361007480).

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

5431232520 is a wasteful number, since it uses less digits than its factorization.

5431232520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602 (or 3585 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 5431232520 is about 73696.8962711456. The cubic root of 5431232520 is about 1757.7865295434.

Adding to 5431232520 its reverse (252321345), we get a palindrome (5683553865).

The spelling of 5431232520 in words is "five billion, four hundred thirty-one million, two hundred thirty-two thousand, five hundred twenty".