550550555 has 16 divisors (see below), whose sum is σ = 696016800. Its totient is φ = 416908800.

The previous prime is 550550551. The next prime is 550550569. The reversal of 550550555 is 555055055.

It is not a de Polignac number, because 550550555 - 2² = 550550551 is a prime.

It is a super-2 number, since 2×550550555² = 606211827221616050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550550551) 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 15 ways as a sum of consecutive naturals, for example, 195155 + ... + 197955.

It is an arithmetic number, because the mean of its divisors is an integer number (43501050).

Almost surely, 2^550550555 is an apocalyptic number.

550550555 is a deficient number, since it is larger than the sum of its proper divisors (145466245).

550550555 is a wasteful number, since it uses less digits than its factorization.

550550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4894.

The product of its (nonzero) digits is 78125, while the sum is 35.

The square root of 550550555 is about 23463.8137351966. The cubic root of 550550555 is about 819.5945621119.

The spelling of 550550555 in words is "five hundred fifty million, five hundred fifty thousand, five hundred fifty-five".