55228080 has 40 divisors (see below), whose sum is σ = 171207792. Its totient is φ = 14727424.

The previous prime is 55228051. The next prime is 55228091. The reversal of 55228080 is 8082255.

55228080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 7 ways as a sum of consecutive naturals, for example, 114819 + ... + 115298.

Almost surely, 2^55228080 is an apocalyptic number.

It is an amenable number.

55228080 is an abundant number, since it is smaller than the sum of its proper divisors (115979712).

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

55228080 is a wasteful number, since it uses less digits than its factorization.

55228080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230133 (or 230127 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 55228080 is about 7431.5597286169. The cubic root of 55228080 is about 380.8202043631.

The spelling of 55228080 in words is "fifty-five million, two hundred twenty-eight thousand, eighty".