55494560449 has 2 divisors, whose sum is σ = 55494560450. Its totient is φ = 55494560448.

The previous prime is 55494560437. The next prime is 55494560501. The reversal of 55494560449 is 94406549455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52872403600 + 2622156849 = 229940^2 + 51207^2 .

It is a cyclic number.

It is not a de Polignac number, because 55494560449 - 2⁹ = 55494559937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55494560449.

It is not a weakly prime, because it can be changed into another prime (55494567449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27747280224 + 27747280225.

It is an arithmetic number, because the mean of its divisors is an integer number (27747280225).

Almost surely, 2^55494560449 is an apocalyptic number.

It is an amenable number.

55494560449 is a deficient number, since it is larger than the sum of its proper divisors (1).

55494560449 is an equidigital number, since it uses as much as digits as its factorization.

55494560449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552000, while the sum is 55.

The spelling of 55494560449 in words is "fifty-five billion, four hundred ninety-four million, five hundred sixty thousand, four hundred forty-nine".