55600543591 has 2 divisors, whose sum is σ = 55600543592. Its totient is φ = 55600543590.

The previous prime is 55600543577. The next prime is 55600543651. The reversal of 55600543591 is 19534500655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55600543591 - 2²⁹ = 55063672679 is a prime.

It is a super-2 number, since 2×55600543591² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55600543501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27800271795 + 27800271796.

It is an arithmetic number, because the mean of its divisors is an integer number (27800271796).

Almost surely, 2^55600543591 is an apocalyptic number.

55600543591 is a deficient number, since it is larger than the sum of its proper divisors (1).

55600543591 is an equidigital number, since it uses as much as digits as its factorization.

55600543591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 55600543591 in words is "fifty-five billion, six hundred million, five hundred forty-three thousand, five hundred ninety-one".