550345555 has 4 divisors (see below), whose sum is σ = 660414672. Its totient is φ = 440276440.

The previous prime is 550345529. The next prime is 550345559. The reversal of 550345555 is 555543055.

550345555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 550345555 - 2⁷ = 550345427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550345559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55034551 + ... + 55034560.

It is an arithmetic number, because the mean of its divisors is an integer number (165103668).

Almost surely, 2^550345555 is an apocalyptic number.

550345555 is a deficient number, since it is larger than the sum of its proper divisors (110069117).

550345555 is a wasteful number, since it uses less digits than its factorization.

550345555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110069116.

The product of its (nonzero) digits is 187500, while the sum is 37.

The square root of 550345555 is about 23459.4448996561. Note that the first 3 decimals coincide. The cubic root of 550345555 is about 819.4928228971.

The spelling of 550345555 in words is "five hundred fifty million, three hundred forty-five thousand, five hundred fifty-five".