56554511641 has 2 divisors, whose sum is σ = 56554511642. Its totient is φ = 56554511640.

The previous prime is 56554511603. The next prime is 56554511659. The reversal of 56554511641 is 14611545565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43975767616 + 12578744025 = 209704^2 + 112155^2 .

It is a cyclic number.

It is not a de Polignac number, because 56554511641 - 2⁹ = 56554511129 is a prime.

It is not a weakly prime, because it can be changed into another prime (56554511141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28277255820 + 28277255821.

It is an arithmetic number, because the mean of its divisors is an integer number (28277255821).

Almost surely, 2^56554511641 is an apocalyptic number.

It is an amenable number.

56554511641 is a deficient number, since it is larger than the sum of its proper divisors (1).

56554511641 is an equidigital number, since it uses as much as digits as its factorization.

56554511641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360000, while the sum is 43.

The spelling of 56554511641 in words is "fifty-six billion, five hundred fifty-four million, five hundred eleven thousand, six hundred forty-one".