5611220 has 12 divisors (see below), whose sum is σ = 11783604. Its totient is φ = 2244480.

The previous prime is 5611169. The next prime is 5611223. The reversal of 5611220 is 221165.

It can be written as a sum of positive squares in 2 ways, for example, as 611524 + 4999696 = 782^2 + 2236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5611223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140261 + ... + 140300.

It is an arithmetic number, because the mean of its divisors is an integer number (981967).

Almost surely, 2^5611220 is an apocalyptic number.

It is an amenable number.

5611220 is an abundant number, since it is smaller than the sum of its proper divisors (6172384).

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

5611220 is a wasteful number, since it uses less digits than its factorization.

5611220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280570 (or 280568 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 5611220 is about 2368.8013846669. The cubic root of 5611220 is about 177.6993198356.

Adding to 5611220 its reverse (221165), we get a palindrome (5832385).

The spelling of 5611220 in words is "five million, six hundred eleven thousand, two hundred twenty".