27505000297 has 2 divisors, whose sum is σ = 27505000298. Its totient is φ = 27505000296.

The previous prime is 27505000241. The next prime is 27505000307. The reversal of 27505000297 is 79200050572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23060244736 + 4444755561 = 151856^2 + 66669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27505000297 is a prime.

It is not a weakly prime, because it can be changed into another prime (27505000217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13752500148 + 13752500149.

It is an arithmetic number, because the mean of its divisors is an integer number (13752500149).

Almost surely, 2^27505000297 is an apocalyptic number.

It is an amenable number.

27505000297 is a deficient number, since it is larger than the sum of its proper divisors (1).

27505000297 is an equidigital number, since it uses as much as digits as its factorization.

27505000297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 37.

The spelling of 27505000297 in words is "twenty-seven billion, five hundred five million, two hundred ninety-seven", and thus it is an aban number.