55500520650 has 48 divisors (see below), whose sum is σ = 138859398144. Its totient is φ = 14669159680.

The previous prime is 55500520643. The next prime is 55500520729. The reversal of 55500520650 is 5602500555.

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 23 ways as a sum of consecutive naturals, for example, 1620234 + ... + 1654133.

It is an arithmetic number, because the mean of its divisors is an integer number (2892904128).

Almost surely, 2^55500520650 is an apocalyptic number.

55500520650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55500520650 is an abundant number, since it is smaller than the sum of its proper divisors (83358877494).

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

55500520650 is a wasteful number, since it uses less digits than its factorization.

55500520650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274495 (or 3274490 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 33.

The spelling of 55500520650 in words is "fifty-five billion, five hundred million, five hundred twenty thousand, six hundred fifty".