5621224 has 16 divisors (see below), whose sum is σ = 12045600. Its totient is φ = 2409072.

The previous prime is 5621221. The next prime is 5621243. The reversal of 5621224 is 4221265.

It is a junction number, because it is equal to n+sod(n) for n = 5621195 and 5621204.

It is not an unprimeable number, because it can be changed into a prime (5621221) 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, 50134 + ... + 50245.

It is an arithmetic number, because the mean of its divisors is an integer number (752850).

Almost surely, 2^5621224 is an apocalyptic number.

It is an amenable number.

5621224 is an abundant number, since it is smaller than the sum of its proper divisors (6424376).

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

5621224 is a wasteful number, since it uses less digits than its factorization.

5621224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100392 (or 100388 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 5621224 is about 2370.9120607901. The cubic root of 5621224 is about 177.8048612673.

Adding to 5621224 its reverse (4221265), we get a palindrome (9842489).

The spelling of 5621224 in words is "five million, six hundred twenty-one thousand, two hundred twenty-four".