2500554999 has 32 divisors (see below), whose sum is σ = 3453166080. Its totient is φ = 1608766848.

The previous prime is 2500554977. The next prime is 2500555019. The reversal of 2500554999 is 9994550052.

It is a happy number.

It is not a de Polignac number, because 2500554999 - 2⁵ = 2500554967 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500550999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2931057 + ... + 2931909.

It is an arithmetic number, because the mean of its divisors is an integer number (107911440).

Almost surely, 2^2500554999 is an apocalyptic number.

2500554999 is a deficient number, since it is larger than the sum of its proper divisors (952611081).

2500554999 is a wasteful number, since it uses less digits than its factorization.

2500554999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 729000, while the sum is 48.

The square root of 2500554999 is about 50005.5496820103. The cubic root of 2500554999 is about 1357.3092341372.

The spelling of 2500554999 in words is "two billion, five hundred million, five hundred fifty-four thousand, nine hundred ninety-nine".