55500005555 has 8 divisors (see below), whose sum is σ = 68896558800. Its totient is φ = 42868969696.

The previous prime is 55500005543. The next prime is 55500005579. The reversal of 55500005555 is 55550000555.

55500005555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55500005555 - 2⁸ = 55500005299 is a prime.

55500005555 is a modest number, since divided by 5555 gives 555 as remainder.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191379185 + ... + 191379474.

It is an arithmetic number, because the mean of its divisors is an integer number (8612069850).

Almost surely, 2^55500005555 is an apocalyptic number.

55500005555 is a deficient number, since it is larger than the sum of its proper divisors (13396553245).

55500005555 is a wasteful number, since it uses less digits than its factorization.

55500005555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382758693.

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

Subtracting 55500005555 from its reverse (55550000555), we obtain a triangular number (49995000 = T₉₉₉₉).

It can be divided in two parts, 5550000 and 5555, that added together give a palindrome (5555555).

The spelling of 55500005555 in words is "fifty-five billion, five hundred million, five thousand, five hundred fifty-five".