5555549511 has 20 divisors (see below), whose sum is σ = 8328390312. Its totient is φ = 3690597168.

The previous prime is 5555549509. The next prime is 5555549521. The reversal of 5555549511 is 1159455555.

5555549511 is a `hidden beast` number, since 5 + 5 + 5 + 554 + 95 + 1 + 1 = 666.

It is not a de Polignac number, because 5555549511 - 2¹ = 5555549509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555549521) 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 19 ways as a sum of consecutive naturals, for example, 98256 + ... + 144101.

Almost surely, 2^5555549511 is an apocalyptic number.

5555549511 is a deficient number, since it is larger than the sum of its proper divisors (2772840801).

5555549511 is a wasteful number, since it uses less digits than its factorization.

5555549511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242652 (or 242643 counting only the distinct ones).

The product of its digits is 562500, while the sum is 45.

The square root of 5555549511 is about 74535.5587018706. The cubic root of 5555549511 is about 1771.0969729742.

The spelling of 5555549511 in words is "five billion, five hundred fifty-five million, five hundred forty-nine thousand, five hundred eleven".