55555555500047 has 2 divisors, whose sum is σ = 55555555500048. Its totient is φ = 55555555500046.

The previous prime is 55555555500001. The next prime is 55555555500077. The reversal of 55555555500047 is 74000555555555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55555555500047 - 2¹⁰ = 55555555499023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55555555499965 and 55555555500001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55555555500077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27777777750023 + 27777777750024.

It is an arithmetic number, because the mean of its divisors is an integer number (27777777750024).

Almost surely, 2^{55555555500047} is an apocalyptic number.

55555555500047 is a deficient number, since it is larger than the sum of its proper divisors (1).

55555555500047 is an equidigital number, since it uses as much as digits as its factorization.

55555555500047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54687500, while the sum is 56.

The spelling of 55555555500047 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred fifty-five million, five hundred thousand, forty-seven".