5564981 has 2 divisors, whose sum is σ = 5564982. Its totient is φ = 5564980.

The previous prime is 5564957. The next prime is 5565019. The reversal of 5564981 is 1894655.

It is an a-pointer prime, because the next prime (5565019) can be obtained adding 5564981 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5564881 + 100 = 2359^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 5564981 - 2¹⁸ = 5302837 is a prime.

It is a super-2 number, since 2×5564981² = 61938027060722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5564381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2782490 + 2782491.

It is an arithmetic number, because the mean of its divisors is an integer number (2782491).

Almost surely, 2^5564981 is an apocalyptic number.

It is an amenable number.

5564981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5564981 is an equidigital number, since it uses as much as digits as its factorization.

5564981 is an evil number, because the sum of its binary digits is even.

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

The square root of 5564981 is about 2359.0211953266. The cubic root of 5564981 is about 177.2098652335.

The spelling of 5564981 in words is "five million, five hundred sixty-four thousand, nine hundred eighty-one".