2520545808 has 80 divisors (see below), whose sum is σ = 7135543296. Its totient is φ = 760341120.

The previous prime is 2520545801. The next prime is 2520545809. The reversal of 2520545808 is 8085450252.

It is not an unprimeable number, because it can be changed into a prime (2520545801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107041 + ... + 128447.

Almost surely, 2^2520545808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2520545808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3567771648).

2520545808 is an abundant number, since it is smaller than the sum of its proper divisors (4614997488).

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

2520545808 is a wasteful number, since it uses less digits than its factorization.

2520545808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21652 (or 21646 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 39.

The square root of 2520545808 is about 50205.0376755162. The cubic root of 2520545808 is about 1360.9166628685.

The spelling of 2520545808 in words is "two billion, five hundred twenty million, five hundred forty-five thousand, eight hundred eight".