55542487680 has 192 divisors, whose sum is σ = 196256380320. Its totient is φ = 14466816000.

The previous prime is 55542487657. The next prime is 55542487691. The reversal of 55542487680 is 8678424555.

55542487680 is a `hidden beast` number, since 5 + 554 + 2 + 4 + 8 + 7 + 6 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 135555 + ... + 359805.

Almost surely, 2^55542487680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55542487680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98128190160).

55542487680 is an abundant number, since it is smaller than the sum of its proper divisors (140713892640).

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

55542487680 is a wasteful number, since it uses less digits than its factorization.

55542487680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224319 (or 224304 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 54.

The spelling of 55542487680 in words is "fifty-five billion, five hundred forty-two million, four hundred eighty-seven thousand, six hundred eighty".