55555555508 has 12 divisors (see below), whose sum is σ = 97259504580. Its totient is φ = 27767125632.

The previous prime is 55555555477. The next prime is 55555555543. The reversal of 55555555508 is 80555555555.

It can be written as a sum of positive squares in 2 ways, for example, as 17821716004 + 37733839504 = 133498^2 + 194252^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55555555508.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2651291 + ... + 2672162.

It is an arithmetic number, because the mean of its divisors is an integer number (8104958715).

Almost surely, 2^55555555508 is an apocalyptic number.

It is an amenable number.

55555555508 is a deficient number, since it is larger than the sum of its proper divisors (41703949072).

55555555508 is a wasteful number, since it uses less digits than its factorization.

55555555508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326066 (or 5326064 counting only the distinct ones).

The product of its (nonzero) digits is 15625000, while the sum is 53.

The spelling of 55555555508 in words is "fifty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred eight".