55042849 has 2 divisors, whose sum is σ = 55042850. Its totient is φ = 55042848.

The previous prime is 55042847. The next prime is 55042873. The reversal of 55042849 is 94824055.

55042849 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., 45697600 + 9345249 = 6760^2 + 3057^2 .

It is a cyclic number.

It is not a de Polignac number, because 55042849 - 2¹ = 55042847 is a prime.

Together with 55042847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55042843) 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, 27521424 + 27521425.

It is an arithmetic number, because the mean of its divisors is an integer number (27521425).

Almost surely, 2^55042849 is an apocalyptic number.

It is an amenable number.

55042849 is a deficient number, since it is larger than the sum of its proper divisors (1).

55042849 is an equidigital number, since it uses as much as digits as its factorization.

55042849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 55042849 is about 7419.0868036437. The cubic root of 55042849 is about 380.3939796585.

The spelling of 55042849 in words is "fifty-five million, forty-two thousand, eight hundred forty-nine".