55554563 has 2 divisors, whose sum is σ = 55554564. Its totient is φ = 55554562.

The previous prime is 55554559. The next prime is 55554593. The reversal of 55554563 is 36545555.

55554563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55554563 - 2² = 55554559 is a prime.

It is not a weakly prime, because it can be changed into another prime (55554503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27777281 + 27777282.

It is an arithmetic number, because the mean of its divisors is an integer number (27777282).

Almost surely, 2^55554563 is an apocalyptic number.

55554563 is a deficient number, since it is larger than the sum of its proper divisors (1).

55554563 is an equidigital number, since it uses as much as digits as its factorization.

55554563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225000, while the sum is 38.

The square root of 55554563 is about 7453.4933420511. The cubic root of 55554563 is about 381.5691417859.

The spelling of 55554563 in words is "fifty-five million, five hundred fifty-four thousand, five hundred sixty-three".