5512221 has 24 divisors (see below), whose sum is σ = 9356256. Its totient is φ = 3083040.

The previous prime is 5512189. The next prime is 5512229. The reversal of 5512221 is 1222155.

It is not a de Polignac number, because 5512221 - 2⁵ = 5512189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5512194 and 5512203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5512229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 855 + ... + 3428.

It is an arithmetic number, because the mean of its divisors is an integer number (389844).

Almost surely, 2^5512221 is an apocalyptic number.

It is an amenable number.

5512221 is a deficient number, since it is larger than the sum of its proper divisors (3844035).

5512221 is a wasteful number, since it uses less digits than its factorization.

5512221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313 (or 4310 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 5512221 is about 2347.8119601024. The cubic root of 5512221 is about 176.6480606172.

Adding to 5512221 its reverse (1222155), we get a palindrome (6734376).

It can be divided in two parts, 551 and 2221, that added together give a palindrome (2772).

The spelling of 5512221 in words is "five million, five hundred twelve thousand, two hundred twenty-one".