5217508218 has 32 divisors (see below), whose sum is σ = 11511807552. Its totient is φ = 1566230400.

The previous prime is 5217508189. The next prime is 5217508229. The reversal of 5217508218 is 8128057125.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812548 + ... + 818943.

It is an arithmetic number, because the mean of its divisors is an integer number (359743986).

Almost surely, 2^5217508218 is an apocalyptic number.

5217508218 is an abundant number, since it is smaller than the sum of its proper divisors (6294299334).

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

5217508218 is a wasteful number, since it uses less digits than its factorization.

5217508218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631550.

The product of its (nonzero) digits is 44800, while the sum is 39.

The square root of 5217508218 is about 72232.3211450387. The cubic root of 5217508218 is about 1734.4204303477.

The spelling of 5217508218 in words is "five billion, two hundred seventeen million, five hundred eight thousand, two hundred eighteen".