55203355676243 has 2 divisors, whose sum is σ = 55203355676244. Its totient is φ = 55203355676242.

The previous prime is 55203355676143. The next prime is 55203355676269. The reversal of 55203355676243 is 34267655330255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55203355676243 - 2²⁰ = 55203354627667 is a prime.

It is not a weakly prime, because it can be changed into another prime (55203355676143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27601677838121 + 27601677838122.

It is an arithmetic number, because the mean of its divisors is an integer number (27601677838122).

Almost surely, 2^{55203355676243} is an apocalyptic number.

55203355676243 is a deficient number, since it is larger than the sum of its proper divisors (1).

55203355676243 is an equidigital number, since it uses as much as digits as its factorization.

55203355676243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040000, while the sum is 56.

The spelling of 55203355676243 in words is "fifty-five trillion, two hundred three billion, three hundred fifty-five million, six hundred seventy-six thousand, two hundred forty-three".