55489708249 has 2 divisors, whose sum is σ = 55489708250. Its totient is φ = 55489708248.

The previous prime is 55489708243. The next prime is 55489708283. The reversal of 55489708249 is 94280798455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55488513600 + 1194649 = 235560^2 + 1093^2 .

It is a cyclic number.

It is not a de Polignac number, because 55489708249 - 2⁹ = 55489707737 is a prime.

It is not a weakly prime, because it can be changed into another prime (55489708243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27744854124 + 27744854125.

It is an arithmetic number, because the mean of its divisors is an integer number (27744854125).

Almost surely, 2^55489708249 is an apocalyptic number.

It is an amenable number.

55489708249 is a deficient number, since it is larger than the sum of its proper divisors (1).

55489708249 is an equidigital number, since it uses as much as digits as its factorization.

55489708249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29030400, while the sum is 61.

The spelling of 55489708249 in words is "fifty-five billion, four hundred eighty-nine million, seven hundred eight thousand, two hundred forty-nine".