55550055050550 has 72 divisors (see below), whose sum is σ = 149283524436384. Its totient is φ = 14809472758080.

The previous prime is 55550055050491. The next prime is 55550055050579. The reversal of 55550055050550 is 5505055005555.

It is a super-2 number, since 2×55550055050550² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 55550055050496 and 55550055050505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14424637 + ... + 17865336.

Almost surely, 2^{55550055050550} is an apocalyptic number.

55550055050550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55550055050550 is an abundant number, since it is smaller than the sum of its proper divisors (93733469385834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55550055050550 is a wasteful number, since it uses less digits than its factorization.

55550055050550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32293814 (or 32293806 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 55550055050550 in words is "fifty-five trillion, five hundred fifty billion, fifty-five million, fifty thousand, five hundred fifty".