55887168 has 56 divisors (see below), whose sum is σ = 151883872. Its totient is φ = 18123264.

The previous prime is 55887157. The next prime is 55887187. The reversal of 55887168 is 86178855.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3171 + ... + 11037.

It is an arithmetic number, because the mean of its divisors is an integer number (2712212).

Almost surely, 2^55887168 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 55887168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75941936).

55887168 is an abundant number, since it is smaller than the sum of its proper divisors (95996704).

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

55887168 is a wasteful number, since it uses less digits than its factorization.

55887168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7919 (or 7909 counting only the distinct ones).

The product of its digits is 537600, while the sum is 48.

The square root of 55887168 is about 7475.7720671513. The cubic root of 55887168 is about 382.3291115832.

The spelling of 55887168 in words is "fifty-five million, eight hundred eighty-seven thousand, one hundred sixty-eight".