5571667625609 has 2 divisors, whose sum is σ = 5571667625610. Its totient is φ = 5571667625608.

The previous prime is 5571667625603. The next prime is 5571667625669. The reversal of 5571667625609 is 9065267661755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5534562079225 + 37105546384 = 2352565^2 + 192628^2 .

It is a cyclic number.

It is not a de Polignac number, because 5571667625609 - 2²⁰ = 5571666577033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5571667625603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2785833812804 + 2785833812805.

It is an arithmetic number, because the mean of its divisors is an integer number (2785833812805).

Almost surely, 2^{5571667625609} is an apocalyptic number.

It is an amenable number.

5571667625609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5571667625609 is an equidigital number, since it uses as much as digits as its factorization.

5571667625609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884000, while the sum is 65.

The spelling of 5571667625609 in words is "five trillion, five hundred seventy-one billion, six hundred sixty-seven million, six hundred twenty-five thousand, six hundred nine".