2499000099 has 16 divisors (see below), whose sum is σ = 3511438080. Its totient is φ = 1576484640.

The previous prime is 2499000089. The next prime is 2499000109. The reversal of 2499000099 is 9900009942.

It is a Cunningham number, because it is equal to 49990²-1.

It is an interprime number because it is at equal distance from previous prime (2499000089) and next prime (2499000109).

It is not a de Polignac number, because 2499000099 - 2⁵ = 2499000067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2499000099.

It is not an unprimeable number, because it can be changed into a prime (2499000059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24994 + ... + 74984.

It is an arithmetic number, because the mean of its divisors is an integer number (219464880).

Almost surely, 2^2499000099 is an apocalyptic number.

2499000099 is a deficient number, since it is larger than the sum of its proper divisors (1012437981).

2499000099 is a wasteful number, since it uses less digits than its factorization.

2499000099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50890.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 2499000099 is about 49989.9999899980. Note that the first 4 decimals coincide. The cubic root of 2499000099 is about 1357.0278409094.

The spelling of 2499000099 in words is "two billion, four hundred ninety-nine million, ninety-nine", and thus it is an aban number.