27255444137 has 2 divisors, whose sum is σ = 27255444138. Its totient is φ = 27255444136.

The previous prime is 27255444053. The next prime is 27255444143. The reversal of 27255444137 is 73144455272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24753043561 + 2502400576 = 157331^2 + 50024^2 .

It is a cyclic number.

It is not a de Polignac number, because 27255444137 - 2¹⁴ = 27255427753 is a prime.

It is not a weakly prime, because it can be changed into another prime (27255444737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13627722068 + 13627722069.

It is an arithmetic number, because the mean of its divisors is an integer number (13627722069).

Almost surely, 2^27255444137 is an apocalyptic number.

It is an amenable number.

27255444137 is a deficient number, since it is larger than the sum of its proper divisors (1).

27255444137 is an equidigital number, since it uses as much as digits as its factorization.

27255444137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940800, while the sum is 44.

The spelling of 27255444137 in words is "twenty-seven billion, two hundred fifty-five million, four hundred forty-four thousand, one hundred thirty-seven".