5123435520 has 352 divisors, whose sum is σ = 19836707328. Its totient is φ = 1101791232.

The previous prime is 5123435507. The next prime is 5123435533. The reversal of 5123435520 is 255343215.

It is an interprime number because it is at equal distance from previous prime (5123435507) and next prime (5123435533).

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 1826439 + ... + 1829241.

Almost surely, 2^5123435520 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 5123435520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9918353664).

5123435520 is an abundant number, since it is smaller than the sum of its proper divisors (14713271808).

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

5123435520 is a wasteful number, since it uses less digits than its factorization.

5123435520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855 (or 2837 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 5123435520 is about 71578.1776800723. The cubic root of 5123435520 is about 1723.9331660146.

Adding to 5123435520 its reverse (255343215), we get a palindrome (5378778735).

The spelling of 5123435520 in words is "five billion, one hundred twenty-three million, four hundred thirty-five thousand, five hundred twenty".