5565001005121 has 2 divisors, whose sum is σ = 5565001005122. Its totient is φ = 5565001005120.

The previous prime is 5565001005103. The next prime is 5565001005133. The reversal of 5565001005121 is 1215001005655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4670720604225 + 894280400896 = 2161185^2 + 945664^2 .

It is a cyclic number.

It is not a de Polignac number, because 5565001005121 - 2⁵ = 5565001005089 is a prime.

It is not a weakly prime, because it can be changed into another prime (5565001005191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2782500502560 + 2782500502561.

It is an arithmetic number, because the mean of its divisors is an integer number (2782500502561).

Almost surely, 2^{5565001005121} is an apocalyptic number.

It is an amenable number.

5565001005121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5565001005121 is an equidigital number, since it uses as much as digits as its factorization.

5565001005121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 5565001005121 in words is "five trillion, five hundred sixty-five billion, one million, five thousand, one hundred twenty-one".