6554565439 has 2 divisors, whose sum is σ = 6554565440. Its totient is φ = 6554565438.

The previous prime is 6554565431. The next prime is 6554565469. The reversal of 6554565439 is 9345654556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6554565439 - 2³ = 6554565431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6554565431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277282719 + 3277282720.

It is an arithmetic number, because the mean of its divisors is an integer number (3277282720).

Almost surely, 2^6554565439 is an apocalyptic number.

6554565439 is a deficient number, since it is larger than the sum of its proper divisors (1).

6554565439 is an equidigital number, since it uses as much as digits as its factorization.

6554565439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720000, while the sum is 52.

The square root of 6554565439 is about 80960.2707443595. The cubic root of 6554565439 is about 1871.4632411982.

The spelling of 6554565439 in words is "six billion, five hundred fifty-four million, five hundred sixty-five thousand, four hundred thirty-nine".