99995549 has 2 divisors, whose sum is σ = 99995550. Its totient is φ = 99995548.

The previous prime is 99995527. The next prime is 99995551. The reversal of 99995549 is 94559999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92256025 + 7739524 = 9605^2 + 2782^2 .

It is an emirp because it is prime and its reverse (94559999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99995549 - 2¹⁶ = 99930013 is a prime.

It is a super-2 number, since 2×99995549² = 19998219639622802, which contains 22 as substring.

Together with 99995551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

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, 49997774 + 49997775.

It is an arithmetic number, because the mean of its divisors is an integer number (49997775).

Almost surely, 2^99995549 is an apocalyptic number.

It is an amenable number.

99995549 is a deficient number, since it is larger than the sum of its proper divisors (1).

99995549 is an equidigital number, since it uses as much as digits as its factorization.

99995549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5904900, while the sum is 59.

The square root of 99995549 is about 9999.7774475235. Note that the first 3 decimals coincide. The cubic root of 99995549 is about 464.1519966885.

The spelling of 99995549 in words is "ninety-nine million, nine hundred ninety-five thousand, five hundred forty-nine".