5555555506 has 16 divisors (see below), whose sum is σ = 8495572248. Its totient is φ = 2723760000.

The previous prime is 5555555503. The next prime is 5555555519. The reversal of 5555555506 is 6055555555.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2509509025 + 3046046481 = 50095^2 + 55191^2 .

It is not an unprimeable number, because it can be changed into a prime (5555555501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176356 + ... + 205456.

Almost surely, 2^5555555506 is an apocalyptic number.

5555555506 is a deficient number, since it is larger than the sum of its proper divisors (2940016742).

5555555506 is a wasteful number, since it uses less digits than its factorization.

5555555506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30957.

The product of its (nonzero) digits is 2343750, while the sum is 46.

The square root of 5555555506 is about 74535.5989175642. The cubic root of 5555555506 is about 1771.0976100383.

The spelling of 5555555506 in words is "five billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred six".