55464644563 has 2 divisors, whose sum is σ = 55464644564. Its totient is φ = 55464644562.

The previous prime is 55464644537. The next prime is 55464644581. The reversal of 55464644563 is 36544646455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55464644563 - 2¹⁷ = 55464513491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55464644563.

It is not a weakly prime, because it can be changed into another prime (55464644513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27732322281 + 27732322282.

It is an arithmetic number, because the mean of its divisors is an integer number (27732322282).

Almost surely, 2^55464644563 is an apocalyptic number.

55464644563 is a deficient number, since it is larger than the sum of its proper divisors (1).

55464644563 is an equidigital number, since it uses as much as digits as its factorization.

55464644563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736000, while the sum is 52.

The spelling of 55464644563 in words is "fifty-five billion, four hundred sixty-four million, six hundred forty-four thousand, five hundred sixty-three".