5218513408 has 40 divisors (see below), whose sum is σ = 10442800368. Its totient is φ = 2605261824.

The previous prime is 5218513403. The next prime is 5218513427. The reversal of 5218513408 is 8043158125.

It is not an unprimeable number, because it can be changed into a prime (5218513403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 342235 + ... + 357157.

Almost surely, 2^5218513408 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 5218513408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5221400184).

5218513408 is an abundant number, since it is smaller than the sum of its proper divisors (5224286960).

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

5218513408 is an equidigital number, since it uses as much as digits as its factorization.

5218513408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15624 (or 15608 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 5218513408 is about 72239.2788446839. The cubic root of 5218513408 is about 1734.5318059987.

The spelling of 5218513408 in words is "five billion, two hundred eighteen million, five hundred thirteen thousand, four hundred eight".