505555005547 has 2 divisors, whose sum is σ = 505555005548. Its totient is φ = 505555005546.

The previous prime is 505555005521. The next prime is 505555005559. The reversal of 505555005547 is 745500555505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505555005547 - 2¹⁹ = 505554481259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505555005497 and 505555005506.

It is not a weakly prime, because it can be changed into another prime (505555005047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252777502773 + 252777502774.

It is an arithmetic number, because the mean of its divisors is an integer number (252777502774).

Almost surely, 2^505555005547 is an apocalyptic number.

505555005547 is a deficient number, since it is larger than the sum of its proper divisors (1).

505555005547 is an equidigital number, since it uses as much as digits as its factorization.

505555005547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187500, while the sum is 46.

The spelling of 505555005547 in words is "five hundred five billion, five hundred fifty-five million, five thousand, five hundred forty-seven".