55328284 has 12 divisors (see below), whose sum is σ = 105626808. Its totient is φ = 25149200.

The previous prime is 55328279. The next prime is 55328333. The reversal of 55328284 is 48282355.

55328284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55328284² = 6122438020769312, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 628687 + ... + 628774.

It is an arithmetic number, because the mean of its divisors is an integer number (8802234).

Almost surely, 2^55328284 is an apocalyptic number.

It is an amenable number.

55328284 is a deficient number, since it is larger than the sum of its proper divisors (50298524).

55328284 is a wasteful number, since it uses less digits than its factorization.

55328284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257476 (or 1257474 counting only the distinct ones).

The product of its digits is 76800, while the sum is 37.

The square root of 55328284 is about 7438.2984613418. The cubic root of 55328284 is about 381.0503810680.

The spelling of 55328284 in words is "fifty-five million, three hundred twenty-eight thousand, two hundred eighty-four".