5215812 has 48 divisors (see below), whose sum is σ = 14364672. Its totient is φ = 1441440.

The previous prime is 5215811. The next prime is 5215841. The reversal of 5215812 is 2185125.

It is not an unprimeable number, because it can be changed into a prime (5215811) 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 15 ways as a sum of consecutive naturals, for example, 1603 + ... + 3605.

It is an arithmetic number, because the mean of its divisors is an integer number (299264).

Almost surely, 2^5215812 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 5215812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7182336).

5215812 is an abundant number, since it is smaller than the sum of its proper divisors (9148860).

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

5215812 is a wasteful number, since it uses less digits than its factorization.

5215812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048 (or 2046 counting only the distinct ones).

The product of its digits is 800, while the sum is 24.

The square root of 5215812 is about 2283.8152289535. The cubic root of 5215812 is about 173.4232455942.

The spelling of 5215812 in words is "five million, two hundred fifteen thousand, eight hundred twelve".