5555505050551 has 2 divisors, whose sum is σ = 5555505050552. Its totient is φ = 5555505050550.

The previous prime is 5555505050531. The next prime is 5555505050569. The reversal of 5555505050551 is 1550505055555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5555505050551 - 2⁷ = 5555505050423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5555505050531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777752525275 + 2777752525276.

It is an arithmetic number, because the mean of its divisors is an integer number (2777752525276).

Almost surely, 2^{5555505050551} is an apocalyptic number.

5555505050551 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555505050551 is an equidigital number, since it uses as much as digits as its factorization.

5555505050551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1953125, while the sum is 46.

The spelling of 5555505050551 in words is "five trillion, five hundred fifty-five billion, five hundred five million, fifty thousand, five hundred fifty-one".