5243521536 has 480 divisors, whose sum is σ = 17649156096. Its totient is φ = 1483776000.

The previous prime is 5243521513. The next prime is 5243521541. The reversal of 5243521536 is 6351253425.

5243521536 is a `hidden beast` number, since 5 + 2 + 435 + 215 + 3 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 5243521536.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 73852381 + ... + 73852451.

Almost surely, 2^5243521536 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 5243521536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8824578048).

5243521536 is an abundant number, since it is smaller than the sum of its proper divisors (12405634560).

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

5243521536 is a wasteful number, since it uses less digits than its factorization.

5243521536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 165 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 5243521536 is about 72412.1642819768. The cubic root of 5243521536 is about 1737.2981293407.

The spelling of 5243521536 in words is "five billion, two hundred forty-three million, five hundred twenty-one thousand, five hundred thirty-six".