55563168 has 48 divisors (see below), whose sum is σ = 146857536. Its totient is φ = 18393600.

The previous prime is 55563161. The next prime is 55563169. The reversal of 55563168 is 86136555.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (55563161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12580 + ... + 16412.

It is an arithmetic number, because the mean of its divisors is an integer number (3059532).

Almost surely, 2^55563168 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 55563168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73428768).

55563168 is an abundant number, since it is smaller than the sum of its proper divisors (91294368).

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

55563168 is a wasteful number, since it uses less digits than its factorization.

55563168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997 (or 3989 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 55563168 is about 7454.0705658050. The cubic root of 55563168 is about 381.5888415356.

The spelling of 55563168 in words is "fifty-five million, five hundred sixty-three thousand, one hundred sixty-eight".