27275502563 has 2 divisors, whose sum is σ = 27275502564. Its totient is φ = 27275502562.

The previous prime is 27275502547. The next prime is 27275502571. The reversal of 27275502563 is 36520557272.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27275502563 - 2⁴ = 27275502547 is a prime.

It is not a weakly prime, because it can be changed into another prime (27275501563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13637751281 + 13637751282.

It is an arithmetic number, because the mean of its divisors is an integer number (13637751282).

Almost surely, 2^27275502563 is an apocalyptic number.

27275502563 is a deficient number, since it is larger than the sum of its proper divisors (1).

27275502563 is an equidigital number, since it uses as much as digits as its factorization.

27275502563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882000, while the sum is 44.

The spelling of 27275502563 in words is "twenty-seven billion, two hundred seventy-five million, five hundred two thousand, five hundred sixty-three".