99717255433 has 2 divisors, whose sum is σ = 99717255434. Its totient is φ = 99717255432.

The previous prime is 99717255431. The next prime is 99717255461. The reversal of 99717255433 is 33455271799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72807149584 + 26910105849 = 269828^2 + 164043^2 .

It is a cyclic number.

It is not a de Polignac number, because 99717255433 - 2¹ = 99717255431 is a prime.

Together with 99717255431, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99717255431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49858627716 + 49858627717.

It is an arithmetic number, because the mean of its divisors is an integer number (49858627717).

Almost surely, 2^99717255433 is an apocalyptic number.

It is an amenable number.

99717255433 is a deficient number, since it is larger than the sum of its proper divisors (1).

99717255433 is an equidigital number, since it uses as much as digits as its factorization.

99717255433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7144200, while the sum is 55.

The spelling of 99717255433 in words is "ninety-nine billion, seven hundred seventeen million, two hundred fifty-five thousand, four hundred thirty-three".