505555560606 has 16 divisors (see below), whose sum is σ = 1011156367248. Its totient is φ = 168510979200.

The previous prime is 505555560577. The next prime is 505555560611. The reversal of 505555560606 is 606065555505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1739125 + ... + 2008896.

It is an arithmetic number, because the mean of its divisors is an integer number (63197272953).

Almost surely, 2^505555560606 is an apocalyptic number.

505555560606 is an abundant number, since it is smaller than the sum of its proper divisors (505600806642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505555560606 is a wasteful number, since it uses less digits than its factorization.

505555560606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770507.

The product of its (nonzero) digits is 3375000, while the sum is 48.

It can be divided in two parts, 505 and 555560606, that added together give a triangular number (555561111 = T₃₃₃₃₃).

The spelling of 505555560606 in words is "five hundred five billion, five hundred fifty-five million, five hundred sixty thousand, six hundred six".