55244047 has 2 divisors, whose sum is σ = 55244048. Its totient is φ = 55244046.

The previous prime is 55244027. The next prime is 55244069. The reversal of 55244047 is 74044255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55244047 - 2¹⁹ = 54719759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55244027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27622023 + 27622024.

It is an arithmetic number, because the mean of its divisors is an integer number (27622024).

Almost surely, 2^55244047 is an apocalyptic number.

55244047 is a deficient number, since it is larger than the sum of its proper divisors (1).

55244047 is an equidigital number, since it uses as much as digits as its factorization.

55244047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 55244047 is about 7432.6339207578. The cubic root of 55244047 is about 380.8569004925.

The spelling of 55244047 in words is "fifty-five million, two hundred forty-four thousand, forty-seven".