55840140288 has 616 divisors, whose sum is σ = 183285432320. Its totient is φ = 16930529280.

The previous prime is 55840140287. The next prime is 55840140341. The reversal of 55840140288 is 88204104855.

55840140288 is a `hidden beast` number, since 5 + 584 + 0 + 1 + 40 + 28 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (55840140287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 439686081 + ... + 439686207.

Almost surely, 2^55840140288 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 55840140288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91642716160).

55840140288 is an abundant number, since it is smaller than the sum of its proper divisors (127445292032).

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

55840140288 is a wasteful number, since it uses less digits than its factorization.

55840140288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 45.

The spelling of 55840140288 in words is "fifty-five billion, eight hundred forty million, one hundred forty thousand, two hundred eighty-eight".