55273249 has 2 divisors, whose sum is σ = 55273250. Its totient is φ = 55273248.

The previous prime is 55273243. The next prime is 55273297. The reversal of 55273249 is 94237255.

55273249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54863649 + 409600 = 7407^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 55273249 - 2³ = 55273241 is a prime.

It is equal to p_3297574 and since 55273249 and 3297574 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (55273241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27636624 + 27636625.

It is an arithmetic number, because the mean of its divisors is an integer number (27636625).

Almost surely, 2^55273249 is an apocalyptic number.

It is an amenable number.

55273249 is a deficient number, since it is larger than the sum of its proper divisors (1).

55273249 is an equidigital number, since it uses as much as digits as its factorization.

55273249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 55273249 is about 7434.5981061521. The cubic root of 55273249 is about 380.9239956502.

The spelling of 55273249 in words is "fifty-five million, two hundred seventy-three thousand, two hundred forty-nine".