55564643831363 has 2 divisors, whose sum is σ = 55564643831364. Its totient is φ = 55564643831362.

The previous prime is 55564643831351. The next prime is 55564643831381. The reversal of 55564643831363 is 36313834646555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55564643831363 - 2²⁰ = 55564642782787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55564643831296 and 55564643831305.

It is not a weakly prime, because it can be changed into another prime (55564643831393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27782321915681 + 27782321915682.

It is an arithmetic number, because the mean of its divisors is an integer number (27782321915682).

Almost surely, 2^{55564643831363} is an apocalyptic number.

55564643831363 is a deficient number, since it is larger than the sum of its proper divisors (1).

55564643831363 is an equidigital number, since it uses as much as digits as its factorization.

55564643831363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936000, while the sum is 62.

The spelling of 55564643831363 in words is "fifty-five trillion, five hundred sixty-four billion, six hundred forty-three million, eight hundred thirty-one thousand, three hundred sixty-three".