2504556999 has 12 divisors (see below), whose sum is σ = 4134506896. Its totient is φ = 1431175392.

The previous prime is 2504556979. The next prime is 2504557001. The reversal of 2504556999 is 9996554052.

It is not a de Polignac number, because 2504556999 - 2⁹ = 2504556487 is a prime.

It is a super-2 number, since 2×2504556999² = 12545611522479772002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2504556979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19877374 + ... + 19877499.

Almost surely, 2^2504556999 is an apocalyptic number.

2504556999 is a deficient number, since it is larger than the sum of its proper divisors (1629949897).

2504556999 is a wasteful number, since it uses less digits than its factorization.

2504556999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39754886 (or 39754883 counting only the distinct ones).

The product of its (nonzero) digits is 4374000, while the sum is 54.

The square root of 2504556999 is about 50045.5492426649. The cubic root of 2504556999 is about 1358.0329476441.

The spelling of 2504556999 in words is "two billion, five hundred four million, five hundred fifty-six thousand, nine hundred ninety-nine".