5561443 has 2 divisors, whose sum is σ = 5561444. Its totient is φ = 5561442.

The previous prime is 5561441. The next prime is 5561447. The reversal of 5561443 is 3441655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5561443 - 2¹ = 5561441 is a prime.

Together with 5561441, it forms a pair of twin primes.

It is equal to p₃₈₄₇₀₆ and since 5561443 and 384706 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (5561441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780721 + 2780722.

It is an arithmetic number, because the mean of its divisors is an integer number (2780722).

Almost surely, 2^5561443 is an apocalyptic number.

5561443 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561443 is an equidigital number, since it uses as much as digits as its factorization.

5561443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 5561443 is about 2358.2711888161. The cubic root of 5561443 is about 177.1723028760.

The spelling of 5561443 in words is "five million, five hundred sixty-one thousand, four hundred forty-three".