5621312 has 14 divisors (see below), whose sum is σ = 11154918. Its totient is φ = 2810624.

The previous prime is 5621311. The next prime is 5621327. The reversal of 5621312 is 2131265.

It can be written as a sum of positive squares in only one way, i.e., 5125696 + 495616 = 2264^2 + 704^2 .

It is not an unprimeable number, because it can be changed into a prime (5621311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43853 + ... + 43980.

Almost surely, 2^5621312 is an apocalyptic number.

It is an amenable number.

5621312 is a deficient number, since it is larger than the sum of its proper divisors (5533606).

5621312 is an equidigital number, since it uses as much as digits as its factorization.

5621312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87845 (or 87835 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 5621312 is about 2370.9306189764. The cubic root of 5621312 is about 177.8057891047.

Adding to 5621312 its reverse (2131265), we get a palindrome (7752577).

The spelling of 5621312 in words is "five million, six hundred twenty-one thousand, three hundred twelve".