55580055028 has 12 divisors (see below), whose sum is σ = 97543795300. Its totient is φ = 27710399232.

The previous prime is 55580054989. The next prime is 55580055049. The reversal of 55580055028 is 82055008555.

It can be written as a sum of positive squares in 2 ways, for example, as 34883779984 + 20696275044 = 186772^2 + 143862^2 .

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, 19905501 + ... + 19908292.

Almost surely, 2^55580055028 is an apocalyptic number.

It is an amenable number.

55580055028 is a deficient number, since it is larger than the sum of its proper divisors (41963740272).

55580055028 is a wasteful number, since it uses less digits than its factorization.

55580055028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39814146 (or 39814144 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 43.

The spelling of 55580055028 in words is "fifty-five billion, five hundred eighty million, fifty-five thousand, twenty-eight".