55357421108 has 72 divisors (see below), whose sum is σ = 111212344320. Its totient is φ = 24046862400.

The previous prime is 55357421107. The next prime is 55357421143. The reversal of 55357421108 is 80112475355.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55357421107) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 24723053 + ... + 24725291.

Almost surely, 2^55357421108 is an apocalyptic number.

It is an amenable number.

55357421108 is an abundant number, since it is smaller than the sum of its proper divisors (55854923212).

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

55357421108 is a wasteful number, since it uses less digits than its factorization.

55357421108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509 (or 4496 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 55357421108 in words is "fifty-five billion, three hundred fifty-seven million, four hundred twenty-one thousand, one hundred eight".