55244450047 has 2 divisors, whose sum is σ = 55244450048. Its totient is φ = 55244450046.

The previous prime is 55244450039. The next prime is 55244450059. The reversal of 55244450047 is 74005444255.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55244450047 - 2³ = 55244450039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55244449991 and 55244450009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55244450017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27622225023 + 27622225024.

It is an arithmetic number, because the mean of its divisors is an integer number (27622225024).

Almost surely, 2^55244450047 is an apocalyptic number.

55244450047 is a deficient number, since it is larger than the sum of its proper divisors (1).

55244450047 is an equidigital number, since it uses as much as digits as its factorization.

55244450047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448000, while the sum is 40.

The spelling of 55244450047 in words is "fifty-five billion, two hundred forty-four million, four hundred fifty thousand, forty-seven".