5540449 has 2 divisors, whose sum is σ = 5540450. Its totient is φ = 5540448.

The previous prime is 5540443. The next prime is 5540459. The reversal of 5540449 is 9440455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4950625 + 589824 = 2225^2 + 768^2 .

It is a cyclic number.

It is not a de Polignac number, because 5540449 - 2³ = 5540441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5540449.

It is not a weakly prime, because it can be changed into another prime (5540441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770224 + 2770225.

It is an arithmetic number, because the mean of its divisors is an integer number (2770225).

Almost surely, 2^5540449 is an apocalyptic number.

It is an amenable number.

5540449 is a deficient number, since it is larger than the sum of its proper divisors (1).

5540449 is an equidigital number, since it uses as much as digits as its factorization.

5540449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 5540449 is about 2353.8158381658. The cubic root of 5540449 is about 176.9490846988.

It can be divided in two parts, 55 and 40449, that added together give a palindrome (40504).

The spelling of 5540449 in words is "five million, five hundred forty thousand, four hundred forty-nine".