99995563 has 2 divisors, whose sum is σ = 99995564. Its totient is φ = 99995562.

The previous prime is 99995551. The next prime is 99995569. The reversal of 99995563 is 36559999.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99995563 is a prime.

It is a super-2 number, since 2×99995563² = 19998225239373938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99995569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49997781 + 49997782.

It is an arithmetic number, because the mean of its divisors is an integer number (49997782).

Almost surely, 2^99995563 is an apocalyptic number.

99995563 is a deficient number, since it is larger than the sum of its proper divisors (1).

99995563 is an equidigital number, since it uses as much as digits as its factorization.

99995563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2952450, while the sum is 55.

The square root of 99995563 is about 9999.7781475391. The cubic root of 99995563 is about 464.1520183499.

The spelling of 99995563 in words is "ninety-nine million, nine hundred ninety-five thousand, five hundred sixty-three".