5221812 has 12 divisors (see below), whose sum is σ = 12184256. Its totient is φ = 1740600.

The previous prime is 5221793. The next prime is 5221817. The reversal of 5221812 is 2181225.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217564 + ... + 217587.

Almost surely, 2^5221812 is an apocalyptic number.

It is an amenable number.

5221812 is an abundant number, since it is smaller than the sum of its proper divisors (6962444).

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

5221812 is a wasteful number, since it uses less digits than its factorization.

5221812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435158 (or 435156 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 5221812 is about 2285.1284427795. The cubic root of 5221812 is about 173.4897191515.

The spelling of 5221812 in words is "five million, two hundred twenty-one thousand, eight hundred twelve".