5548661 has 2 divisors, whose sum is σ = 5548662. Its totient is φ = 5548660.

The previous prime is 5548651. The next prime is 5548693. The reversal of 5548661 is 1668455.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5262436 + 286225 = 2294^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 5548661 - 2¹⁸ = 5286517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5548601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2774330 + 2774331.

It is an arithmetic number, because the mean of its divisors is an integer number (2774331).

Almost surely, 2^5548661 is an apocalyptic number.

It is an amenable number.

5548661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5548661 is an equidigital number, since it uses as much as digits as its factorization.

5548661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 35.

The square root of 5548661 is about 2355.5595938121. The cubic root of 5548661 is about 177.0364656161.

The spelling of 5548661 in words is "five million, five hundred forty-eight thousand, six hundred sixty-one".