5128105520 has 40 divisors (see below), whose sum is σ = 11985304320. Its totient is φ = 2040496640.

The previous prime is 5128105487. The next prime is 5128105523. The reversal of 5128105520 is 255018215.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (5128105523) 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, 152525 + ... + 183084.

It is an arithmetic number, because the mean of its divisors is an integer number (299632608).

Almost surely, 2^5128105520 is an apocalyptic number.

It is an amenable number.

5128105520 is an abundant number, since it is smaller than the sum of its proper divisors (6857198800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5128105520 is a wasteful number, since it uses less digits than its factorization.

5128105520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335813 (or 335807 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 5128105520 is about 71610.7919241227. The cubic root of 5128105520 is about 1724.4567940247.

The spelling of 5128105520 in words is "five billion, one hundred twenty-eight million, one hundred five thousand, five hundred twenty".