27800053529 has 2 divisors, whose sum is σ = 27800053530. Its totient is φ = 27800053528.

The previous prime is 27800053513. The next prime is 27800053543. The reversal of 27800053529 is 92535000872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20972832400 + 6827221129 = 144820^2 + 82627^2 .

It is a cyclic number.

It is not a de Polignac number, because 27800053529 - 2⁴ = 27800053513 is a prime.

It is not a weakly prime, because it can be changed into another prime (27800053579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13900026764 + 13900026765.

It is an arithmetic number, because the mean of its divisors is an integer number (13900026765).

Almost surely, 2^27800053529 is an apocalyptic number.

It is an amenable number.

27800053529 is a deficient number, since it is larger than the sum of its proper divisors (1).

27800053529 is an equidigital number, since it uses as much as digits as its factorization.

27800053529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 27800053529 in words is "twenty-seven billion, eight hundred million, fifty-three thousand, five hundred twenty-nine".