55330318 has 64 divisors (see below), whose sum is σ = 98496000. Its totient is φ = 23151744.

The previous prime is 55330309. The next prime is 55330333. The reversal of 55330318 is 81303355.

It is a super-2 number, since 2×55330318² = 6122888179962248, 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 (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 937773 + ... + 937831.

It is an arithmetic number, because the mean of its divisors is an integer number (1539000).

Almost surely, 2^55330318 is an apocalyptic number.

55330318 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

55330318 is a deficient number, since it is larger than the sum of its proper divisors (43165682).

55330318 is a wasteful number, since it uses less digits than its factorization.

55330318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 55330318 is about 7438.4351849028. The cubic root of 55330318 is about 381.0550504518.

The spelling of 55330318 in words is "fifty-five million, three hundred thirty thousand, three hundred eighteen".