5431304520 has 96 divisors (see below), whose sum is σ = 17688265920. Its totient is φ = 1445351040.

The previous prime is 5431304509. The next prime is 5431304539. The reversal of 5431304520 is 254031345.

5431304520 is a `hidden beast` number, since 5 + 4 + 3 + 130 + 4 + 520 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161397 + ... + 192123.

It is an arithmetic number, because the mean of its divisors is an integer number (184252770).

Almost surely, 2^5431304520 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 5431304520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8844132960).

5431304520 is an abundant number, since it is smaller than the sum of its proper divisors (12256961400).

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

5431304520 is a wasteful number, since it uses less digits than its factorization.

5431304520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31235 (or 31228 counting only the distinct ones).

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

The square root of 5431304520 is about 73697.3847568555. The cubic root of 5431304520 is about 1757.7942969682.

Adding to 5431304520 its reverse (254031345), we get a palindrome (5685335865).

The spelling of 5431304520 in words is "five billion, four hundred thirty-one million, three hundred four thousand, five hundred twenty".