2499 has 12 divisors (see below), whose sum is σ = 4104. Its totient is φ = 1344.

The previous prime is 2477. The next prime is 2503. The reversal of 2499 is 9942.

2499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 50²-1.

It is not a de Polignac number, because 2499 - 2⁵ = 2467 is a prime.

Its product of digits (648) is a multiple of the sum of its prime divisors (27).

2499 is a modest number, since divided by 99 gives 24 as remainder.

It is a plaindrome in base 5 and base 10.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (2459) by changing a digit.

Being equal to 4×5⁴-1, it is a generalized Woodall number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139 + ... + 155.

It is an arithmetic number, because the mean of its divisors is an integer number (342).

2499 is a deficient number, since it is larger than the sum of its proper divisors (1605).

2499 is a wasteful number, since it uses less digits than its factorization.

2499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34 (or 27 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

The square root of 2499 is about 49.9899989998. The cubic root of 2499 is about 13.5702782299.

The spelling of 2499 in words is "two thousand, four hundred ninety-nine".