2125555555 has 8 divisors (see below), whose sum is σ = 2684912400. Its totient is φ = 1610947296.

The previous prime is 2125555529. The next prime is 2125555633. The reversal of 2125555555 is 5555555212.

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 2125555555 - 2⁷ = 2125555427 is a prime.

2125555555 is a modest number, since divided by 55555 gives 21255 as remainder.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11187040 + ... + 11187229.

It is an arithmetic number, because the mean of its divisors is an integer number (335614050).

Almost surely, 2^2125555555 is an apocalyptic number.

2125555555 is a deficient number, since it is larger than the sum of its proper divisors (559356845).

2125555555 is a wasteful number, since it uses less digits than its factorization.

2125555555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22374293.

The product of its digits is 312500, while the sum is 40.

The square root of 2125555555 is about 46103.7477326952. The cubic root of 2125555555 is about 1285.7528238684.

The spelling of 2125555555 in words is "two billion, one hundred twenty-five million, five hundred fifty-five thousand, five hundred fifty-five".