550550605 has 24 divisors (see below), whose sum is σ = 735436800. Its totient is φ = 395297760.

The previous prime is 550550603. The next prime is 550550657. The reversal of 550550605 is 506055055.

It is not a de Polignac number, because 550550605 - 2¹ = 550550603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550550603) 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 23 ways as a sum of consecutive naturals, for example, 42036 + ... + 53554.

It is an arithmetic number, because the mean of its divisors is an integer number (30643200).

Almost surely, 2^550550605 is an apocalyptic number.

550550605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

550550605 is a deficient number, since it is larger than the sum of its proper divisors (184886195).

550550605 is a wasteful number, since it uses less digits than its factorization.

550550605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11625 (or 11614 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 550550605 is about 23463.8148006670. The cubic root of 550550605 is about 819.5945869233.

It can be divided in two parts, 550550 and 605, that added together give a palindrome (551155).

The spelling of 550550605 in words is "five hundred fifty million, five hundred fifty thousand, six hundred five".