55328230 has 16 divisors (see below), whose sum is σ = 103025520. Its totient is φ = 21368032.

The previous prime is 55328227. The next prime is 55328239. The reversal of 55328230 is 3282355.

It is a super-2 number, since 2×55328230² = 6122426069865800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55328239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95104 + ... + 95683.

It is an arithmetic number, because the mean of its divisors is an integer number (6439095).

Almost surely, 2^55328230 is an apocalyptic number.

55328230 is a deficient number, since it is larger than the sum of its proper divisors (47697290).

55328230 is a wasteful number, since it uses less digits than its factorization.

55328230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190823.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 55328230 is about 7438.2948314785. The cubic root of 55328230 is about 381.0502571005.

It can be divided in two parts, 5 and 5328230, that added together give a palindrome (5328235).

The spelling of 55328230 in words is "fifty-five million, three hundred twenty-eight thousand, two hundred thirty".