550505050551 has 24 divisors (see below), whose sum is σ = 838669806000. Its totient is φ = 347004266112.

The previous prime is 550505050549. The next prime is 550505050553. The reversal of 550505050551 is 155050505055.

It is a happy number.

550505050551 is a `hidden beast` number, since 5 + 5 + 0 + 5 + 0 + 50 + 50 + 551 = 666.

It is an interprime number because it is at equal distance from previous prime (550505050549) and next prime (550505050553).

It is not a de Polignac number, because 550505050551 - 2¹ = 550505050549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550505050553) 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 23 ways as a sum of consecutive naturals, for example, 3075366 + ... + 3249443.

It is an arithmetic number, because the mean of its divisors is an integer number (34944575250).

Almost surely, 2^550505050551 is an apocalyptic number.

550505050551 is a deficient number, since it is larger than the sum of its proper divisors (288164755449).

550505050551 is a wasteful number, since it uses less digits than its factorization.

550505050551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6325343 (or 6325340 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 36.

The spelling of 550505050551 in words is "five hundred fifty billion, five hundred five million, fifty thousand, five hundred fifty-one".