5511620 has 12 divisors (see below), whose sum is σ = 11574444. Its totient is φ = 2204640.

The previous prime is 5511613. The next prime is 5511641. The reversal of 5511620 is 261155.

It can be written as a sum of positive squares in 2 ways, for example, as 906304 + 4605316 = 952^2 + 2146^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 275581 = 5511620 / (5 + 5 + 1 + 1 + 6 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 5511592 and 5511601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137771 + ... + 137810.

It is an arithmetic number, because the mean of its divisors is an integer number (964537).

Almost surely, 2^5511620 is an apocalyptic number.

It is an amenable number.

5511620 is an abundant number, since it is smaller than the sum of its proper divisors (6062824).

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

5511620 is a wasteful number, since it uses less digits than its factorization.

5511620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275590 (or 275588 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 5511620 is about 2347.6839651026. The cubic root of 5511620 is about 176.6416403773.

Adding to 5511620 its reverse (261155), we get a palindrome (5772775).

The spelling of 5511620 in words is "five million, five hundred eleven thousand, six hundred twenty".