2499066823 has 4 divisors (see below), whose sum is σ = 2726254728. Its totient is φ = 2271878920.

The previous prime is 2499066799. The next prime is 2499066833. The reversal of 2499066823 is 3286609942.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2499066823 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499066833) 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 in 3 ways as a sum of consecutive naturals, for example, 113593936 + ... + 113593957.

It is an arithmetic number, because the mean of its divisors is an integer number (681563682).

Almost surely, 2^2499066823 is an apocalyptic number.

2499066823 is a deficient number, since it is larger than the sum of its proper divisors (227187905).

2499066823 is a wasteful number, since it uses less digits than its factorization.

2499066823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227187904.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 2499066823 is about 49990.6673590181. The cubic root of 2499066823 is about 1357.0399184760.

The spelling of 2499066823 in words is "two billion, four hundred ninety-nine million, sixty-six thousand, eight hundred twenty-three".