5218005640 has 32 divisors (see below), whose sum is σ = 11769255000. Its totient is φ = 2082092544.

The previous prime is 5218005601. The next prime is 5218005673. The reversal of 5218005640 is 465008125.

It can be written as a sum of positive squares in 4 ways, for example, as 4930567524 + 287438116 = 70218^2 + 16954^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143115 + ... + 175834.

Almost surely, 2^5218005640 is an apocalyptic number.

It is an amenable number.

5218005640 is an abundant number, since it is smaller than the sum of its proper divisors (6551249360).

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

5218005640 is a wasteful number, since it uses less digits than its factorization.

5218005640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319369 (or 319365 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 5218005640 is about 72235.7642722772. The cubic root of 5218005640 is about 1734.4755467895.

The spelling of 5218005640 in words is "five billion, two hundred eighteen million, five thousand, six hundred forty".