55550005580 has 24 divisors (see below), whose sum is σ = 116661187440. Its totient is φ = 22218825920.

The previous prime is 55550005543. The next prime is 55550005583. The reversal of 55550005580 is 8550005555.

55550005580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×55550005580³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (55550005583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382790 + ... + 507570.

It is an arithmetic number, because the mean of its divisors is an integer number (4860882810).

Almost surely, 2^55550005580 is an apocalyptic number.

It is an amenable number.

55550005580 is an abundant number, since it is smaller than the sum of its proper divisors (61111181860).

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

55550005580 is a wasteful number, since it uses less digits than its factorization.

55550005580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147049 (or 147047 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 38.

The spelling of 55550005580 in words is "fifty-five billion, five hundred fifty million, five thousand, five hundred eighty".