4581551855 has 8 divisors (see below), whose sum is σ = 5517429264. Its totient is φ = 3652196800.

The previous prime is 4581551851. The next prime is 4581551881. The reversal of 4581551855 is 5581551854.

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

It is not a de Polignac number, because 4581551855 - 2² = 4581551851 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4581551851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629041 + ... + 1631850.

It is an arithmetic number, because the mean of its divisors is an integer number (689678658).

Almost surely, 2^4581551855 is an apocalyptic number.

4581551855 is a deficient number, since it is larger than the sum of its proper divisors (935877409).

4581551855 is a wasteful number, since it uses less digits than its factorization.

4581551855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261177.

The product of its digits is 800000, while the sum is 47.

The square root of 4581551855 is about 67687.1616704379. The cubic root of 4581551855 is about 1660.8772465656.

Subtracting 4581551855 from its reverse (5581551854), we obtain a palindrome (999999999).

The spelling of 4581551855 in words is "four billion, five hundred eighty-one million, five hundred fifty-one thousand, eight hundred fifty-five".