27550494539 has 2 divisors, whose sum is σ = 27550494540. Its totient is φ = 27550494538.

The previous prime is 27550494497. The next prime is 27550494541. The reversal of 27550494539 is 93549405572.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27550494539 is a prime.

Together with 27550494541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27550494739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13775247269 + 13775247270.

It is an arithmetic number, because the mean of its divisors is an integer number (13775247270).

Almost surely, 2^27550494539 is an apocalyptic number.

27550494539 is a deficient number, since it is larger than the sum of its proper divisors (1).

27550494539 is an equidigital number, since it uses as much as digits as its factorization.

27550494539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 27550494539 in words is "twenty-seven billion, five hundred fifty million, four hundred ninety-four thousand, five hundred thirty-nine".