55438208 has 48 divisors (see below), whose sum is σ = 128489400. Its totient is φ = 23756544.

The previous prime is 55438183. The next prime is 55438217. The reversal of 55438208 is 80283455.

55438208 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 an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1853 + ... + 10691.

Almost surely, 2^55438208 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 55438208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64244700).

55438208 is an abundant number, since it is smaller than the sum of its proper divisors (73051192).

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

55438208 is an equidigital number, since it uses as much as digits as its factorization.

55438208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8867 (or 8848 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 55438208 is about 7445.6838503928. The cubic root of 55438208 is about 381.3025659671.

The spelling of 55438208 in words is "fifty-five million, four hundred thirty-eight thousand, two hundred eight".