55500005543 has 2 divisors, whose sum is σ = 55500005544. Its totient is φ = 55500005542.

The previous prime is 55500005489. The next prime is 55500005579. The reversal of 55500005543 is 34550000555.

55500005543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55500005543 - 2³⁰ = 54426263719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55500005843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750002771 + 27750002772.

It is an arithmetic number, because the mean of its divisors is an integer number (27750002772).

Almost surely, 2^55500005543 is an apocalyptic number.

55500005543 is a deficient number, since it is larger than the sum of its proper divisors (1).

55500005543 is an equidigital number, since it uses as much as digits as its factorization.

55500005543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37500, while the sum is 32.

The spelling of 55500005543 in words is "fifty-five billion, five hundred million, five thousand, five hundred forty-three".