99559613 has 2 divisors, whose sum is σ = 99559614. Its totient is φ = 99559612.

The previous prime is 99559567. The next prime is 99559627. The reversal of 99559613 is 31695599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94051204 + 5508409 = 9698^2 + 2347^2 .

It is a cyclic number.

It is not a de Polignac number, because 99559613 - 2⁶ = 99559549 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99559013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49779806 + 49779807.

It is an arithmetic number, because the mean of its divisors is an integer number (49779807).

Almost surely, 2^99559613 is an apocalyptic number.

It is an amenable number.

99559613 is a deficient number, since it is larger than the sum of its proper divisors (1).

99559613 is an equidigital number, since it uses as much as digits as its factorization.

99559613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 328050, while the sum is 47.

The square root of 99559613 is about 9977.9563538833. The cubic root of 99559613 is about 463.4765155652.

The spelling of 99559613 in words is "ninety-nine million, five hundred fifty-nine thousand, six hundred thirteen".