5555555055541 has 2 divisors, whose sum is σ = 5555555055542. Its totient is φ = 5555555055540.

The previous prime is 5555555055521. The next prime is 5555555055551. The reversal of 5555555055541 is 1455505555555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5547183720516 + 8371335025 = 2355246^2 + 91495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5555555055541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5555555055511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777777527770 + 2777777527771.

It is an arithmetic number, because the mean of its divisors is an integer number (2777777527771).

Almost surely, 2^{5555555055541} is an apocalyptic number.

It is an amenable number.

5555555055541 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555555055541 is an equidigital number, since it uses as much as digits as its factorization.

5555555055541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39062500, while the sum is 55.

The spelling of 5555555055541 in words is "five trillion, five hundred fifty-five billion, five hundred fifty-five million, fifty-five thousand, five hundred forty-one".