4391098055 has 4 divisors (see below), whose sum is σ = 5269317672. Its totient is φ = 3512878440.

The previous prime is 4391098043. The next prime is 4391098097. The reversal of 4391098055 is 5508901934.

It is a happy number.

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

It is not a de Polignac number, because 4391098055 - 2²⁰ = 4390049479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4391097997 and 4391098015.

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, 439109801 + ... + 439109810.

It is an arithmetic number, because the mean of its divisors is an integer number (1317329418).

Almost surely, 2^4391098055 is an apocalyptic number.

4391098055 is a deficient number, since it is larger than the sum of its proper divisors (878219617).

4391098055 is an equidigital number, since it uses as much as digits as its factorization.

4391098055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878219616.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 4391098055 is about 66265.3608984362. The cubic root of 4391098055 is about 1637.5367113344.

Adding to 4391098055 its reverse (5508901934), we get a palindrome (9899999989).

The spelling of 4391098055 in words is "four billion, three hundred ninety-one million, ninety-eight thousand, fifty-five".