55561005608 has 64 divisors (see below), whose sum is σ = 109242000000. Its totient is φ = 26442104832.

The previous prime is 55561005601. The next prime is 55561005611. The reversal of 55561005608 is 80650016555.

It is not an unprimeable number, because it can be changed into a prime (55561005601) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44483768 + ... + 44485016.

It is an arithmetic number, because the mean of its divisors is an integer number (1706906250).

Almost surely, 2^55561005608 is an apocalyptic number.

It is an amenable number.

55561005608 is a deficient number, since it is larger than the sum of its proper divisors (53680994392).

55561005608 is a wasteful number, since it uses less digits than its factorization.

55561005608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274 (or 2270 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 41.

The spelling of 55561005608 in words is "fifty-five billion, five hundred sixty-one million, five thousand, six hundred eight".