2528521315 has 4 divisors (see below), whose sum is σ = 3034225584. Its totient is φ = 2022817048.

The previous prime is 2528521279. The next prime is 2528521343. The reversal of 2528521315 is 5131258252.

2528521315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2528521315 - 2⁹ = 2528520803 is a prime.

It is a Duffinian 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, 252852127 + ... + 252852136.

It is an arithmetic number, because the mean of its divisors is an integer number (758556396).

Almost surely, 2^2528521315 is an apocalyptic number.

2528521315 is a deficient number, since it is larger than the sum of its proper divisors (505704269).

2528521315 is an equidigital number, since it uses as much as digits as its factorization.

2528521315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505704268.

The product of its digits is 24000, while the sum is 34.

The square root of 2528521315 is about 50284.4042919870. The cubic root of 2528521315 is about 1362.3505549973.

Adding to 2528521315 its reverse (5131258252), we get a palindrome (7659779567).

The spelling of 2528521315 in words is "two billion, five hundred twenty-eight million, five hundred twenty-one thousand, three hundred fifteen".