99605503 has 2 divisors, whose sum is σ = 99605504. Its totient is φ = 99605502.

The previous prime is 99605461. The next prime is 99605509. The reversal of 99605503 is 30550699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99605503 - 2⁹ = 99604991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99605509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49802751 + 49802752.

It is an arithmetic number, because the mean of its divisors is an integer number (49802752).

Almost surely, 2^99605503 is an apocalyptic number.

99605503 is a deficient number, since it is larger than the sum of its proper divisors (1).

99605503 is an equidigital number, since it uses as much as digits as its factorization.

99605503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 99605503 is about 9980.2556580480. The cubic root of 99605503 is about 463.5477146846.

The spelling of 99605503 in words is "ninety-nine million, six hundred five thousand, five hundred three".