5218000 has 40 divisors (see below), whose sum is σ = 12621960. Its totient is φ = 2086400.

The previous prime is 5217991. The next prime is 5218021. The reversal of 5218000 is 8125.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 254016 + 4963984 = 504^2 + 2228^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 696 + ... + 3304.

It is an arithmetic number, because the mean of its divisors is an integer number (315549).

Almost surely, 2^5218000 is an apocalyptic number.

5218000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5218000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6310980).

5218000 is an abundant number, since it is smaller than the sum of its proper divisors (7403960).

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

5218000 is a wasteful number, since it uses less digits than its factorization.

5218000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632 (or 2616 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 5218000 is about 2284.2942017175. The cubic root of 5218000 is about 173.4474921873.

The spelling of 5218000 in words is "five million, two hundred eighteen thousand".