55555050564 has 36 divisors (see below), whose sum is σ = 151233194476. Its totient is φ = 17093861568.

The previous prime is 55555050527. The next prime is 55555050581. The reversal of 55555050564 is 46505055555.

It can be written as a sum of positive squares in 2 ways, for example, as 12287722500 + 43267328064 = 110850^2 + 208008^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 59353219 + ... + 59354154.

Almost surely, 2^55555050564 is an apocalyptic number.

It is an amenable number.

55555050564 is an abundant number, since it is smaller than the sum of its proper divisors (95678143912).

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

55555050564 is a wasteful number, since it uses less digits than its factorization.

55555050564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118707396 (or 118707391 counting only the distinct ones).

The product of its (nonzero) digits is 1875000, while the sum is 45.

The spelling of 55555050564 in words is "fifty-five billion, five hundred fifty-five million, fifty thousand, five hundred sixty-four".