55327640320559 has 2 divisors, whose sum is σ = 55327640320560. Its totient is φ = 55327640320558.

The previous prime is 55327640320549. The next prime is 55327640320571. The reversal of 55327640320559 is 95502304672355.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55327640320559 is a prime.

It is a super-2 number, since 2×55327640320559² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55327640320549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27663820160279 + 27663820160280.

It is an arithmetic number, because the mean of its divisors is an integer number (27663820160280).

Almost surely, 2^{55327640320559} is an apocalyptic number.

55327640320559 is a deficient number, since it is larger than the sum of its proper divisors (1).

55327640320559 is an equidigital number, since it uses as much as digits as its factorization.

55327640320559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020000, while the sum is 56.

The spelling of 55327640320559 in words is "fifty-five trillion, three hundred twenty-seven billion, six hundred forty million, three hundred twenty thousand, five hundred fifty-nine".