55886028 has 48 divisors (see below), whose sum is σ = 143472000. Its totient is φ = 16930320.

The previous prime is 55886023. The next prime is 55886057. The reversal of 55886028 is 82068855.

It is not an unprimeable number, because it can be changed into a prime (55886023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14223 + ... + 17721.

It is an arithmetic number, because the mean of its divisors is an integer number (2989000).

Almost surely, 2^55886028 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 55886028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71736000).

55886028 is an abundant number, since it is smaller than the sum of its proper divisors (87585972).

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

55886028 is a wasteful number, since it uses less digits than its factorization.

55886028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539 (or 3515 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 55886028 is about 7475.6958204571. The cubic root of 55886028 is about 382.3265119516.

The spelling of 55886028 in words is "fifty-five million, eight hundred eighty-six thousand, twenty-eight".