2528115109 has 12 divisors (see below), whose sum is σ = 2739290400. Its totient is φ = 2332156944.

The previous prime is 2528115077. The next prime is 2528115151. The reversal of 2528115109 is 9015118252.

It is not a de Polignac number, because 2528115109 - 2⁵ = 2528115077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528115199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330672 + ... + 338230.

It is an arithmetic number, because the mean of its divisors is an integer number (228274200).

Almost surely, 2^2528115109 is an apocalyptic number.

It is an amenable number.

2528115109 is a deficient number, since it is larger than the sum of its proper divisors (211175291).

2528115109 is a wasteful number, since it uses less digits than its factorization.

2528115109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9564 (or 9551 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 2528115109 is about 50280.3650444187. The cubic root of 2528115109 is about 1362.2775973886.

The spelling of 2528115109 in words is "two billion, five hundred twenty-eight million, one hundred fifteen thousand, one hundred nine".