4550218655 has 4 divisors (see below), whose sum is σ = 5460262392. Its totient is φ = 3640174920.

The previous prime is 4550218633. The next prime is 4550218679. The reversal of 4550218655 is 5568120554.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4550218655 - 2¹⁰ = 4550217631 is a prime.

It is a Duffinian number.

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, 455021861 + ... + 455021870.

It is an arithmetic number, because the mean of its divisors is an integer number (1365065598).

Almost surely, 2^4550218655 is an apocalyptic number.

4550218655 is a deficient number, since it is larger than the sum of its proper divisors (910043737).

4550218655 is an equidigital number, since it uses as much as digits as its factorization.

4550218655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910043736.

The product of its (nonzero) digits is 240000, while the sum is 41.

The square root of 4550218655 is about 67455.3085753820. The cubic root of 4550218655 is about 1657.0823397670.

The spelling of 4550218655 in words is "four billion, five hundred fifty million, two hundred eighteen thousand, six hundred fifty-five".