655544249 has 2 divisors, whose sum is σ = 655544250. Its totient is φ = 655544248.

The previous prime is 655544243. The next prime is 655544261. The reversal of 655544249 is 942445556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488100649 + 167443600 = 22093^2 + 12940^2 .

It is a cyclic number.

It is not a de Polignac number, because 655544249 - 2⁴ = 655544233 is a prime.

It is not a weakly prime, because it can be changed into another prime (655544243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327772124 + 327772125.

It is an arithmetic number, because the mean of its divisors is an integer number (327772125).

Almost surely, 2^655544249 is an apocalyptic number.

It is an amenable number.

655544249 is a deficient number, since it is larger than the sum of its proper divisors (1).

655544249 is an equidigital number, since it uses as much as digits as its factorization.

655544249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864000, while the sum is 44.

The square root of 655544249 is about 25603.5983603868. The cubic root of 655544249 is about 868.6950308439.

The spelling of 655544249 in words is "six hundred fifty-five million, five hundred forty-four thousand, two hundred forty-nine".