55580755320 has 48 divisors (see below), whose sum is σ = 180637455960. Its totient is φ = 14821534656.

The previous prime is 55580755273. The next prime is 55580755331. The reversal of 55580755320 is 2355708555.

55580755320 is a `hidden beast` number, since 5 + 558 + 0 + 75 + 5 + 3 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 11 ways as a sum of consecutive naturals, for example, 77195134 + ... + 77195853.

Almost surely, 2^55580755320 is an apocalyptic number.

It is an amenable number.

55580755320 is an abundant number, since it is smaller than the sum of its proper divisors (125056700640).

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

55580755320 is a wasteful number, since it uses less digits than its factorization.

55580755320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154391004 (or 154390997 counting only the distinct ones).

The product of its (nonzero) digits is 1050000, while the sum is 45.

The spelling of 55580755320 in words is "fifty-five billion, five hundred eighty million, seven hundred fifty-five thousand, three hundred twenty".