55055318 has 8 divisors (see below), whose sum is σ = 85247040. Its totient is φ = 26639640.

The previous prime is 55055291. The next prime is 55055321. The reversal of 55055318 is 81355055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55055318² = 6062176080162248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443933 + ... + 444056.

It is an arithmetic number, because the mean of its divisors is an integer number (10655880).

Almost surely, 2^55055318 is an apocalyptic number.

55055318 is a deficient number, since it is larger than the sum of its proper divisors (30191722).

55055318 is a wasteful number, since it uses less digits than its factorization.

55055318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888022.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 55055318 is about 7419.9270885906. The cubic root of 55055318 is about 380.4227013696.

The spelling of 55055318 in words is "fifty-five million, fifty-five thousand, three hundred eighteen".