5561849 has 2 divisors, whose sum is σ = 5561850. Its totient is φ = 5561848.

The previous prime is 5561821. The next prime is 5561861. The reversal of 5561849 is 9481655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5555449 + 6400 = 2357^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 5561849 - 2⁸ = 5561593 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5561819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780924 + 2780925.

It is an arithmetic number, because the mean of its divisors is an integer number (2780925).

Almost surely, 2^5561849 is an apocalyptic number.

It is an amenable number.

5561849 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561849 is an equidigital number, since it uses as much as digits as its factorization.

5561849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 38.

The square root of 5561849 is about 2358.3572672519. The cubic root of 5561849 is about 177.1766141195.

The spelling of 5561849 in words is "five million, five hundred sixty-one thousand, eight hundred forty-nine".