550605550 has 48 divisors (see below), whose sum is σ = 1119464064. Its totient is φ = 199820000.

The previous prime is 550605521. The next prime is 550605563. The reversal of 550605550 is 55506055.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 533535 + ... + 534565.

It is an arithmetic number, because the mean of its divisors is an integer number (23322168).

Almost surely, 2^550605550 is an apocalyptic number.

550605550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550605550 is an abundant number, since it is smaller than the sum of its proper divisors (568858514).

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

550605550 is a wasteful number, since it uses less digits than its factorization.

550605550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025 (or 2020 counting only the distinct ones).

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

The square root of 550605550 is about 23464.9856168718. The cubic root of 550605550 is about 819.6218512208.

It can be divided in two parts, 550605 and 550, that added together give a palindrome (551155).

The spelling of 550605550 in words is "five hundred fifty million, six hundred five thousand, five hundred fifty".