2551005555 has 32 divisors (see below), whose sum is σ = 4867513344. Its totient is φ = 1115469696.

The previous prime is 2551005553. The next prime is 2551005559. The reversal of 2551005555 is 5555001552.

It is not a de Polignac number, because 2551005555 - 2¹ = 2551005553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2551005553) 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 31 ways as a sum of consecutive naturals, for example, 525744 + ... + 530573.

It is an arithmetic number, because the mean of its divisors is an integer number (152109792).

Almost surely, 2^2551005555 is an apocalyptic number.

2551005555 is a deficient number, since it is larger than the sum of its proper divisors (2316507789).

2551005555 is a wasteful number, since it uses less digits than its factorization.

2551005555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056355.

The product of its (nonzero) digits is 31250, while the sum is 33.

The square root of 2551005555 is about 50507.4801885820. The cubic root of 2551005555 is about 1366.3767643735.

The spelling of 2551005555 in words is "two billion, five hundred fifty-one million, five thousand, five hundred fifty-five".