55358831808 has 280 divisors, whose sum is σ = 193597645824. Its totient is φ = 15306278400.

The previous prime is 55358831797. The next prime is 55358831809. The reversal of 55358831808 is 80813885355.

55358831808 is a `hidden beast` number, since 5 + 53 + 588 + 3 + 1 + 8 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (55358831809) 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 39 ways as a sum of consecutive naturals, for example, 1100323 + ... + 1149533.

Almost surely, 2^55358831808 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 55358831808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96798822912).

55358831808 is an abundant number, since it is smaller than the sum of its proper divisors (138238814016).

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

55358831808 is a wasteful number, since it uses less digits than its factorization.

55358831808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49273 (or 49254 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 54.

The spelling of 55358831808 in words is "fifty-five billion, three hundred fifty-eight million, eight hundred thirty-one thousand, eight hundred eight".