99500573 has 2 divisors, whose sum is σ = 99500574. Its totient is φ = 99500572.

The previous prime is 99500567. The next prime is 99500591. The reversal of 99500573 is 37500599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97970404 + 1530169 = 9898^2 + 1237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99500573 is a prime.

It is a Sophie Germain 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 (99500543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49750286 + 49750287.

It is an arithmetic number, because the mean of its divisors is an integer number (49750287).

Almost surely, 2^99500573 is an apocalyptic number.

It is an amenable number.

99500573 is a deficient number, since it is larger than the sum of its proper divisors (1).

99500573 is an equidigital number, since it uses as much as digits as its factorization.

99500573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 99500573 is about 9974.9973934834. The cubic root of 99500573 is about 463.3848818079.

The spelling of 99500573 in words is "ninety-nine million, five hundred thousand, five hundred seventy-three".