99925519 has 2 divisors, whose sum is σ = 99925520. Its totient is φ = 99925518.

The previous prime is 99925517. The next prime is 99925523. The reversal of 99925519 is 91552999.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (91552999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99925519 - 2¹ = 99925517 is a prime.

It is a super-2 number, since 2×99925519² = 19970218694838722, which contains 22 as substring.

Together with 99925517, 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 (99925513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49962759 + 49962760.

It is an arithmetic number, because the mean of its divisors is an integer number (49962760).

Almost surely, 2^99925519 is an apocalyptic number.

99925519 is a deficient number, since it is larger than the sum of its proper divisors (1).

99925519 is an equidigital number, since it uses as much as digits as its factorization.

99925519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 328050, while the sum is 49.

The square root of 99925519 is about 9996.2752563142. The cubic root of 99925519 is about 464.0436180136.

The spelling of 99925519 in words is "ninety-nine million, nine hundred twenty-five thousand, five hundred nineteen".