55323318 has 16 divisors (see below), whose sum is σ = 111980736. Its totient is φ = 18218760.

The previous prime is 55323311. The next prime is 55323319. The reversal of 55323318 is 81332355.

55323318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55323311) by changing a digit.

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, 55048 + ... + 56043.

It is an arithmetic number, because the mean of its divisors is an integer number (6998796).

Almost surely, 2^55323318 is an apocalyptic number.

55323318 is an abundant number, since it is smaller than the sum of its proper divisors (56657418).

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

55323318 is a wasteful number, since it uses less digits than its factorization.

55323318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111179.

The product of its digits is 10800, while the sum is 30.

The square root of 55323318 is about 7437.9646409485. The cubic root of 55323318 is about 381.0389803120.

It can be divided in two parts, 553 and 23318, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 55323318 in words is "fifty-five million, three hundred twenty-three thousand, three hundred eighteen".