55500550505050 has 48 divisors (see below), whose sum is σ = 117980417377152. Its totient is φ = 19028420769600.

The previous prime is 55500550504967. The next prime is 55500550505087. The reversal of 55500550505050 is 5050505500555.

It is a super-2 number, since 2×55500550505050² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55500550504994 and 55500550505012.

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, 18642480 + ... + 21413620.

It is an arithmetic number, because the mean of its divisors is an integer number (2457925362024).

Almost surely, 2^{55500550505050} is an apocalyptic number.

55500550505050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55500550505050 is an abundant number, since it is smaller than the sum of its proper divisors (62479866872102).

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

55500550505050 is a wasteful number, since it uses less digits than its factorization.

55500550505050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828383 (or 2828378 counting only the distinct ones).

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 55500550505050 in words is "fifty-five trillion, five hundred billion, five hundred fifty million, five hundred five thousand, fifty".