55055556080 has 80 divisors (see below), whose sum is σ = 151009572864. Its totient is φ = 18267275520.

The previous prime is 55055556053. The next prime is 55055556089. The reversal of 55055556080 is 8065555055.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×55055556080² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055556089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1568342 + ... + 1603061.

Almost surely, 2^55055556080 is an apocalyptic number.

It is an amenable number.

55055556080 is an abundant number, since it is smaller than the sum of its proper divisors (95954016784).

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

55055556080 is a wasteful number, since it uses less digits than its factorization.

55055556080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171454 (or 3171448 counting only the distinct ones).

The product of its (nonzero) digits is 750000, while the sum is 44.

The spelling of 55055556080 in words is "fifty-five billion, fifty-five million, five hundred fifty-six thousand, eighty".