55838470447 has 2 divisors, whose sum is σ = 55838470448. Its totient is φ = 55838470446.

The previous prime is 55838470417. The next prime is 55838470451. The reversal of 55838470447 is 74407483855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55838470447 - 2¹⁹ = 55837946159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55838470417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27919235223 + 27919235224.

It is an arithmetic number, because the mean of its divisors is an integer number (27919235224).

Almost surely, 2^55838470447 is an apocalyptic number.

55838470447 is a deficient number, since it is larger than the sum of its proper divisors (1).

55838470447 is an equidigital number, since it uses as much as digits as its factorization.

55838470447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15052800, while the sum is 55.

The spelling of 55838470447 in words is "fifty-five billion, eight hundred thirty-eight million, four hundred seventy thousand, four hundred forty-seven".