99942503 has 2 divisors, whose sum is σ = 99942504. Its totient is φ = 99942502.

The previous prime is 99942487. The next prime is 99942509. The reversal of 99942503 is 30524999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99942503 - 2⁴ = 99942487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99942509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49971251 + 49971252.

It is an arithmetic number, because the mean of its divisors is an integer number (49971252).

Almost surely, 2^99942503 is an apocalyptic number.

99942503 is a deficient number, since it is larger than the sum of its proper divisors (1).

99942503 is an equidigital number, since it uses as much as digits as its factorization.

99942503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 99942503 is about 9997.1247366430. The cubic root of 99942503 is about 464.0699071618.

The spelling of 99942503 in words is "ninety-nine million, nine hundred forty-two thousand, five hundred three".