8558998541 has 2 divisors, whose sum is σ = 8558998542. Its totient is φ = 8558998540.

The previous prime is 8558998529. The next prime is 8558998561. The reversal of 8558998541 is 1458998558.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4608373225 + 3950625316 = 67885^2 + 62854^2 .

It is a cyclic number.

It is not a de Polignac number, because 8558998541 - 2²⁶ = 8491889677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8558998561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4279499270 + 4279499271.

It is an arithmetic number, because the mean of its divisors is an integer number (4279499271).

Almost surely, 2^8558998541 is an apocalyptic number.

It is an amenable number.

8558998541 is a deficient number, since it is larger than the sum of its proper divisors (1).

8558998541 is an equidigital number, since it uses as much as digits as its factorization.

8558998541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736000, while the sum is 62.

The square root of 8558998541 is about 92514.8557854359. The cubic root of 8558998541 is about 2045.5384661758.

The spelling of 8558998541 in words is "eight billion, five hundred fifty-eight million, nine hundred ninety-eight thousand, five hundred forty-one".