550050055551 has 48 divisors (see below), whose sum is σ = 826429443840. Its totient is φ = 352277291520.

The previous prime is 550050055531. The next prime is 550050055579. The reversal of 550050055551 is 155550050055.

It is a happy number.

550050055551 is a `hidden beast` number, since 5 + 5 + 0 + 0 + 50 + 0 + 55 + 551 = 666.

It is not a de Polignac number, because 550050055551 - 2⁵ = 550050055519 is a prime.

It is a super-2 number, since 2×550050055551² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550050055501) 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 47 ways as a sum of consecutive naturals, for example, 11488975 + ... + 11536751.

It is an arithmetic number, because the mean of its divisors is an integer number (17217280080).

Almost surely, 2^550050055551 is an apocalyptic number.

550050055551 is a deficient number, since it is larger than the sum of its proper divisors (276379388289).

550050055551 is a wasteful number, since it uses less digits than its factorization.

550050055551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48316 (or 48313 counting only the distinct ones).

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

The spelling of 550050055551 in words is "five hundred fifty billion, fifty million, fifty-five thousand, five hundred fifty-one".