544455589 has 2 divisors, whose sum is σ = 544455590. Its totient is φ = 544455588.

The previous prime is 544455581. The next prime is 544455607. The reversal of 544455589 is 985554445.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 533841025 + 10614564 = 23105^2 + 3258^2 .

It is a cyclic number.

It is not a de Polignac number, because 544455589 - 2³ = 544455581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544455581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272227794 + 272227795.

It is an arithmetic number, because the mean of its divisors is an integer number (272227795).

Almost surely, 2^544455589 is an apocalyptic number.

It is an amenable number.

544455589 is a deficient number, since it is larger than the sum of its proper divisors (1).

544455589 is an equidigital number, since it uses as much as digits as its factorization.

544455589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880000, while the sum is 49.

The square root of 544455589 is about 23333.5721440160. The cubic root of 544455589 is about 816.5588437038.

The spelling of 544455589 in words is "five hundred forty-four million, four hundred fifty-five thousand, five hundred eighty-nine".