5218530012 has 18 divisors (see below), whose sum is σ = 13191284288. Its totient is φ = 1739509992.

The previous prime is 5218530011. The next prime is 5218530047. The reversal of 5218530012 is 2100358125.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-4 number, since 4×5218530012⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218530011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72479548 + ... + 72479619.

Almost surely, 2^5218530012 is an apocalyptic number.

It is an amenable number.

5218530012 is an abundant number, since it is smaller than the sum of its proper divisors (7972754276).

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

5218530012 is a wasteful number, since it uses less digits than its factorization.

5218530012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144959177 (or 144959172 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 5218530012 is about 72239.3937682204. The cubic root of 5218530012 is about 1734.5336456117.

Adding to 5218530012 its reverse (2100358125), we get a palindrome (7318888137).

The spelling of 5218530012 in words is "five billion, two hundred eighteen million, five hundred thirty thousand, twelve".