55398168 has 224 divisors, whose sum is σ = 188870400. Its totient is φ = 14883264.

The previous prime is 55398163. The next prime is 55398179. The reversal of 55398168 is 86189355.

55398168 is a `hidden beast` number, since 553 + 98 + 1 + 6 + 8 = 666.

55398168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55398163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 938923 + ... + 938981.

Almost surely, 2^55398168 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 55398168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94435200).

55398168 is an abundant number, since it is smaller than the sum of its proper divisors (133472232).

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

55398168 is a wasteful number, since it uses less digits than its factorization.

55398168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 94 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 55398168 is about 7442.9945586437. The cubic root of 55398168 is about 381.2107458286.

The spelling of 55398168 in words is "fifty-five million, three hundred ninety-eight thousand, one hundred sixty-eight".