5521659415729 has 2 divisors, whose sum is σ = 5521659415730. Its totient is φ = 5521659415728.

The previous prime is 5521659415711. The next prime is 5521659415733. The reversal of 5521659415729 is 9275149561255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4111567290000 + 1410092125729 = 2027700^2 + 1187473^2 .

It is a cyclic number.

It is not a de Polignac number, because 5521659415729 - 2¹⁵ = 5521659382961 is a prime.

It is not a weakly prime, because it can be changed into another prime (5521659415709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760829707864 + 2760829707865.

It is an arithmetic number, because the mean of its divisors is an integer number (2760829707865).

Almost surely, 2^{5521659415729} is an apocalyptic number.

It is an amenable number.

5521659415729 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521659415729 is an equidigital number, since it uses as much as digits as its factorization.

5521659415729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020000, while the sum is 61.

The spelling of 5521659415729 in words is "five trillion, five hundred twenty-one billion, six hundred fifty-nine million, four hundred fifteen thousand, seven hundred twenty-nine".