5243591520 has 576 divisors, whose sum is σ = 20209512960. Its totient is φ = 1231110144.

The previous prime is 5243591513. The next prime is 5243591531. The reversal of 5243591520 is 251953425.

It is a happy number.

5243591520 is a `hidden beast` number, since 5 + 2 + 43 + 5 + 91 + 520 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37723611 + ... + 37723749.

It is an arithmetic number, because the mean of its divisors is an integer number (35085960).

Almost surely, 2^5243591520 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 5243591520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10104756480).

5243591520 is an abundant number, since it is smaller than the sum of its proper divisors (14965921440).

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

5243591520 is a wasteful number, since it uses less digits than its factorization.

5243591520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 5243591520 is about 72412.6475140911. The cubic root of 5243591520 is about 1737.3058584041.

The spelling of 5243591520 in words is "five billion, two hundred forty-three million, five hundred ninety-one thousand, five hundred twenty".