550355120551 has 4 divisors (see below), whose sum is σ = 559377335704. Its totient is φ = 541332905400.

The previous prime is 550355120521. The next prime is 550355120617. The reversal of 550355120551 is 155021553055.

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

It is a cyclic number.

It is not a de Polignac number, because 550355120551 - 2⁵ = 550355120519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550355120551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550355120521) 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 3 ways as a sum of consecutive naturals, for example, 4511107485 + ... + 4511107606.

It is an arithmetic number, because the mean of its divisors is an integer number (139844333926).

Almost surely, 2^550355120551 is an apocalyptic number.

550355120551 is a deficient number, since it is larger than the sum of its proper divisors (9022215153).

550355120551 is an equidigital number, since it uses as much as digits as its factorization.

550355120551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9022215152.

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 550355120551 in words is "five hundred fifty billion, three hundred fifty-five million, one hundred twenty thousand, five hundred fifty-one".