55628208 has 50 divisors (see below), whose sum is σ = 161007924. Its totient is φ = 18542304.

The previous prime is 55628207. The next prime is 55628231. The reversal of 55628208 is 80282655.

55628208 is a `hidden beast` number, since 5 + 5 + 628 + 20 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55628207) 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 9 ways as a sum of consecutive naturals, for example, 20166 + ... + 22757.

Almost surely, 2^55628208 is an apocalyptic number.

It is an amenable number.

55628208 is an abundant number, since it is smaller than the sum of its proper divisors (105379716).

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

55628208 is a wasteful number, since it uses less digits than its factorization.

55628208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42943 (or 42928 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 55628208 is about 7458.4320067961. The cubic root of 55628208 is about 381.7376743061.

The spelling of 55628208 in words is "fifty-five million, six hundred twenty-eight thousand, two hundred eight".