550505277780 has 48 divisors (see below), whose sum is σ = 1543292400384. Its totient is φ = 146622586240.

The previous prime is 550505277769. The next prime is 550505277781. The reversal of 550505277780 is 87772505055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550505277781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5538492 + ... + 5637011.

It is an arithmetic number, because the mean of its divisors is an integer number (32151925008).

Almost surely, 2^550505277780 is an apocalyptic number.

It is an amenable number.

550505277780 is an abundant number, since it is smaller than the sum of its proper divisors (992787122604).

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

550505277780 is a wasteful number, since it uses less digits than its factorization.

550505277780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11176336 (or 11176334 counting only the distinct ones).

The product of its (nonzero) digits is 3430000, while the sum is 51.

The spelling of 550505277780 in words is "five hundred fifty billion, five hundred five million, two hundred seventy-seven thousand, seven hundred eighty".