5517645055639 has 2 divisors, whose sum is σ = 5517645055640. Its totient is φ = 5517645055638.

The previous prime is 5517645055633. The next prime is 5517645055709. The reversal of 5517645055639 is 9365505467155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5517645055639 - 2⁵ = 5517645055607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5517645055633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2758822527819 + 2758822527820.

It is an arithmetic number, because the mean of its divisors is an integer number (2758822527820).

Almost surely, 2^{5517645055639} is an apocalyptic number.

5517645055639 is a deficient number, since it is larger than the sum of its proper divisors (1).

5517645055639 is an equidigital number, since it uses as much as digits as its factorization.

5517645055639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85050000, while the sum is 61.

The spelling of 5517645055639 in words is "five trillion, five hundred seventeen billion, six hundred forty-five million, fifty-five thousand, six hundred thirty-nine".