5520681 has 12 divisors (see below), whose sum is σ = 8020740. Its totient is φ = 3659040.

The previous prime is 5520677. The next prime is 5520703. The reversal of 5520681 is 1860255.

It can be written as a sum of positive squares in 2 ways, for example, as 2576025 + 2944656 = 1605^2 + 1716^2 .

It is not a de Polignac number, because 5520681 - 2² = 5520677 is a prime.

It is a super-2 number, since 2×5520681² = 60955837407522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5524681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66 + ... + 3323.

It is an arithmetic number, because the mean of its divisors is an integer number (668395).

Almost surely, 2^5520681 is an apocalyptic number.

It is an amenable number.

5520681 is a deficient number, since it is larger than the sum of its proper divisors (2500059).

5520681 is a wasteful number, since it uses less digits than its factorization.

5520681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576 (or 3573 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 5520681 is about 2349.6129468489. The cubic root of 5520681 is about 176.7383858963.

It can be divided in two parts, 55 and 20681, that added together give a 4-th power (20736 = 12⁴).

The spelling of 5520681 in words is "five million, five hundred twenty thousand, six hundred eighty-one".