5655589 has 2 divisors, whose sum is σ = 5655590. Its totient is φ = 5655588.

The previous prime is 5655583. The next prime is 5655599. The reversal of 5655589 is 9855565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5602689 + 52900 = 2367^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 5655589 - 2⁹ = 5655077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5655583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2827794 + 2827795.

It is an arithmetic number, because the mean of its divisors is an integer number (2827795).

Almost surely, 2^5655589 is an apocalyptic number.

It is an amenable number.

5655589 is a deficient number, since it is larger than the sum of its proper divisors (1).

5655589 is an equidigital number, since it uses as much as digits as its factorization.

5655589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270000, while the sum is 43.

The square root of 5655589 is about 2378.1482291901. The cubic root of 5655589 is about 178.1664583503.

It can be divided in two parts, 56555 and 89, that added together give a square (56644 = 238²).

The spelling of 5655589 in words is "five million, six hundred fifty-five thousand, five hundred eighty-nine".