27550408302757 has 2 divisors, whose sum is σ = 27550408302758. Its totient is φ = 27550408302756.

The previous prime is 27550408302619. The next prime is 27550408302763. The reversal of 27550408302757 is 75720380405572.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18505706934276 + 9044701368481 = 4301826^2 + 3007441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27550408302757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27550408302698 and 27550408302707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27550408300757) 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, 13775204151378 + 13775204151379.

It is an arithmetic number, because the mean of its divisors is an integer number (13775204151379).

Almost surely, 2^{27550408302757} is an apocalyptic number.

It is an amenable number.

27550408302757 is a deficient number, since it is larger than the sum of its proper divisors (1).

27550408302757 is an equidigital number, since it uses as much as digits as its factorization.

27550408302757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464000, while the sum is 55.

The spelling of 27550408302757 in words is "twenty-seven trillion, five hundred fifty billion, four hundred eight million, three hundred two thousand, seven hundred fifty-seven".