2500555555 has 8 divisors (see below), whose sum is σ = 3002194800. Its totient is φ = 1999425696.

The previous prime is 2500555549. The next prime is 2500555567. The reversal of 2500555555 is 5555550052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2500555555 - 2⁷ = 2500555427 is a prime.

2500555555 is a modest number, since divided by 55555 gives 25005 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116460 + ... + 136249.

It is an arithmetic number, because the mean of its divisors is an integer number (375274350).

Almost surely, 2^2500555555 is an apocalyptic number.

2500555555 is a deficient number, since it is larger than the sum of its proper divisors (501639245).

2500555555 is a wasteful number, since it uses less digits than its factorization.

2500555555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254693.

The product of its (nonzero) digits is 156250, while the sum is 37.

The square root of 2500555555 is about 50005.5552413929. Note that the first 3 decimals coincide. The cubic root of 2500555555 is about 1357.3093347367.

The spelling of 2500555555 in words is "two billion, five hundred million, five hundred fifty-five thousand, five hundred fifty-five".