5505555505550 has 96 divisors (see below), whose sum is σ = 10426271292000. Its totient is φ = 2162635200000.

The previous prime is 5505555505517. The next prime is 5505555505561. The reversal of 5505555505550 is 555055555055.

It is a super-2 number, since 2×5505555505550² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 556055600 + ... + 556065500.

It is an arithmetic number, because the mean of its divisors is an integer number (108606992625).

Almost surely, 2^{5505555505550} is an apocalyptic number.

5505555505550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5505555505550 is a deficient number, since it is larger than the sum of its proper divisors (4920715786450).

5505555505550 is a wasteful number, since it uses less digits than its factorization.

5505555505550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10902 (or 10897 counting only the distinct ones).

The product of its (nonzero) digits is 9765625, while the sum is 50.

The spelling of 5505555505550 in words is "five trillion, five hundred five billion, five hundred fifty-five million, five hundred five thousand, five hundred fifty".