27752513249 has 2 divisors, whose sum is σ = 27752513250. Its totient is φ = 27752513248.

The previous prime is 27752513233. The next prime is 27752513273. The reversal of 27752513249 is 94231525772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27695616400 + 56896849 = 166420^2 + 7543^2 .

It is a cyclic number.

It is not a de Polignac number, because 27752513249 - 2⁴ = 27752513233 is a prime.

It is not a weakly prime, because it can be changed into another prime (27752513849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13876256624 + 13876256625.

It is an arithmetic number, because the mean of its divisors is an integer number (13876256625).

Almost surely, 2^27752513249 is an apocalyptic number.

It is an amenable number.

27752513249 is a deficient number, since it is larger than the sum of its proper divisors (1).

27752513249 is an equidigital number, since it uses as much as digits as its factorization.

27752513249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 47.

The spelling of 27752513249 in words is "twenty-seven billion, seven hundred fifty-two million, five hundred thirteen thousand, two hundred forty-nine".