550500000055 has 4 divisors (see below), whose sum is σ = 660600000072. Its totient is φ = 440400000040.

The previous prime is 550500000041. The next prime is 550500000103. The reversal of 550500000055 is 550000005055.

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

It is not a de Polignac number, because 550500000055 - 2⁷ = 550499999927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550499999975 and 550500000029.

It is a congruent number.

It is an unprimeable number.

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, 55050000001 + ... + 55050000010.

It is an arithmetic number, because the mean of its divisors is an integer number (165150000018).

Almost surely, 2^550500000055 is an apocalyptic number.

550500000055 is a deficient number, since it is larger than the sum of its proper divisors (110100000017).

550500000055 is a wasteful number, since it uses less digits than its factorization.

550500000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110100000016.

The product of its (nonzero) digits is 3125, while the sum is 25.

The spelling of 550500000055 in words is "five hundred fifty billion, five hundred million, fifty-five", and thus it is an aban number.