99512519 has 4 divisors (see below), whose sum is σ = 104750040. Its totient is φ = 94275000.

The previous prime is 99512503. The next prime is 99512521. The reversal of 99512519 is 91521599.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99512519 - 2⁴ = 99512503 is a prime.

It is a super-2 number, since 2×99512519² = 19805482875450722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99512549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2618732 + ... + 2618769.

It is an arithmetic number, because the mean of its divisors is an integer number (26187510).

Almost surely, 2^99512519 is an apocalyptic number.

99512519 is a deficient number, since it is larger than the sum of its proper divisors (5237521).

99512519 is a wasteful number, since it uses less digits than its factorization.

99512519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237520.

The product of its digits is 36450, while the sum is 41.

The square root of 99512519 is about 9975.5961726606. The cubic root of 99512519 is about 463.4034256686.

The spelling of 99512519 in words is "ninety-nine million, five hundred twelve thousand, five hundred nineteen".