8564551155049 has 2 divisors, whose sum is σ = 8564551155050. Its totient is φ = 8564551155048.

The previous prime is 8564551155001. The next prime is 8564551155077. The reversal of 8564551155049 is 9405511554658.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6298117256025 + 2266433899024 = 2509605^2 + 1505468^2 .

It is a cyclic number.

It is not a de Polignac number, because 8564551155049 - 2³⁷ = 8427112201577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8564551154984 and 8564551155002.

It is not a weakly prime, because it can be changed into another prime (8564551155449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4282275577524 + 4282275577525.

It is an arithmetic number, because the mean of its divisors is an integer number (4282275577525).

Almost surely, 2^{8564551155049} is an apocalyptic number.

It is an amenable number.

8564551155049 is a deficient number, since it is larger than the sum of its proper divisors (1).

8564551155049 is an equidigital number, since it uses as much as digits as its factorization.

8564551155049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600000, while the sum is 58.

The spelling of 8564551155049 in words is "eight trillion, five hundred sixty-four billion, five hundred fifty-one million, one hundred fifty-five thousand, forty-nine".