2528808563 has 4 divisors (see below), whose sum is σ = 2528949480. Its totient is φ = 2528667648.

The previous prime is 2528808547. The next prime is 2528808589. The reversal of 2528808563 is 3658088252.

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 2528808563 - 2⁴ = 2528808547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2528808523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38798 + ... + 81011.

It is an arithmetic number, because the mean of its divisors is an integer number (632237370).

Almost surely, 2^2528808563 is an apocalyptic number.

2528808563 is a deficient number, since it is larger than the sum of its proper divisors (140917).

2528808563 is a wasteful number, since it uses less digits than its factorization.

2528808563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140916.

The product of its (nonzero) digits is 921600, while the sum is 47.

The square root of 2528808563 is about 50287.2604443710. The cubic root of 2528808563 is about 1362.4021421512.

The spelling of 2528808563 in words is "two billion, five hundred twenty-eight million, eight hundred eight thousand, five hundred sixty-three".