55644240349 has 2 divisors, whose sum is σ = 55644240350. Its totient is φ = 55644240348.

The previous prime is 55644240263. The next prime is 55644240371. The reversal of 55644240349 is 94304244655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42453717849 + 13190522500 = 206043^2 + 114850^2 .

It is a cyclic number.

It is not a de Polignac number, because 55644240349 - 2¹¹ = 55644238301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55644240299 and 55644240308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55644240049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27822120174 + 27822120175.

It is an arithmetic number, because the mean of its divisors is an integer number (27822120175).

Almost surely, 2^55644240349 is an apocalyptic number.

It is an amenable number.

55644240349 is a deficient number, since it is larger than the sum of its proper divisors (1).

55644240349 is an equidigital number, since it uses as much as digits as its factorization.

55644240349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 55644240349 in words is "fifty-five billion, six hundred forty-four million, two hundred forty thousand, three hundred forty-nine".