55005505550000 has 120 divisors (see below), whose sum is σ = 133481519573472. Its totient is φ = 21957013440000.

The previous prime is 55005505549957. The next prime is 55005505550111. The reversal of 55005505550000 is 5550550055.

It is a super-2 number, since 2×55005505550000² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23220524 + ... + 25479476.

Almost surely, 2^{55005505550000} is an apocalyptic number.

55005505550000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55005505550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66740759786736).

55005505550000 is an abundant number, since it is smaller than the sum of its proper divisors (78476014023472).

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

55005505550000 is an equidigital number, since it uses as much as digits as its factorization.

55005505550000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259473 (or 2259447 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 55005505550000 in words is "fifty-five trillion, five billion, five hundred five million, five hundred fifty thousand".