27550494497 has 2 divisors, whose sum is σ = 27550494498. Its totient is φ = 27550494496.

The previous prime is 27550494481. The next prime is 27550494539. The reversal of 27550494497 is 79449405572.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27269898496 + 280596001 = 165136^2 + 16751^2 .

It is a cyclic number.

It is not a de Polignac number, because 27550494497 - 2⁴ = 27550494481 is a prime.

It is not a weakly prime, because it can be changed into another prime (27550494407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13775247248 + 13775247249.

It is an arithmetic number, because the mean of its divisors is an integer number (13775247249).

Almost surely, 2^27550494497 is an apocalyptic number.

It is an amenable number.

27550494497 is a deficient number, since it is larger than the sum of its proper divisors (1).

27550494497 is an equidigital number, since it uses as much as digits as its factorization.

27550494497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 27550494497 in words is "twenty-seven billion, five hundred fifty million, four hundred ninety-four thousand, four hundred ninety-seven".