27755252773 has 2 divisors, whose sum is σ = 27755252774. Its totient is φ = 27755252772.

The previous prime is 27755252761. The next prime is 27755252813. The reversal of 27755252773 is 37725255772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18570330529 + 9184922244 = 136273^2 + 95838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27755252773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27755252773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27755252753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13877626386 + 13877626387.

It is an arithmetic number, because the mean of its divisors is an integer number (13877626387).

Almost surely, 2^27755252773 is an apocalyptic number.

It is an amenable number.

27755252773 is a deficient number, since it is larger than the sum of its proper divisors (1).

27755252773 is an equidigital number, since it uses as much as digits as its factorization.

27755252773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7203000, while the sum is 52.

The spelling of 27755252773 in words is "twenty-seven billion, seven hundred fifty-five million, two hundred fifty-two thousand, seven hundred seventy-three".