5128558215 has 128 divisors (see below), whose sum is σ = 9961989120. Its totient is φ = 2223513600.

The previous prime is 5128558187. The next prime is 5128558231.

5128558215 is nontrivially palindromic in base 10.

5128558215 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5128558215 - 2¹⁵ = 5128525447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5449645 + ... + 5450585.

It is an arithmetic number, because the mean of its divisors is an integer number (77828040).

Almost surely, 2^5128558215 is an apocalyptic number.

5128558215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5128558215 is a deficient number, since it is larger than the sum of its proper divisors (4833430905).

5128558215 is a wasteful number, since it uses less digits than its factorization.

5128558215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its digits is 160000, while the sum is 42.

The square root of 5128558215 is about 71613.9526558896. The cubic root of 5128558215 is about 1724.5075359601.

The spelling of 5128558215 in words is "five billion, one hundred twenty-eight million, five hundred fifty-eight thousand, two hundred fifteen".