2520445872 has 80 divisors (see below), whose sum is σ = 7452380160. Its totient is φ = 719056896.

The previous prime is 2520445871. The next prime is 2520445877. The reversal of 2520445872 is 2785440252.

It is a self number, because there is not a number n which added to its sum of digits gives 2520445872.

It is not an unprimeable number, because it can be changed into a prime (2520445871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236368 + ... + 246800.

It is an arithmetic number, because the mean of its divisors is an integer number (93154752).

Almost surely, 2^2520445872 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 2520445872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3726190080).

2520445872 is an abundant number, since it is smaller than the sum of its proper divisors (4931934288).

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

2520445872 is a wasteful number, since it uses less digits than its factorization.

2520445872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11170 (or 11164 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 39.

The square root of 2520445872 is about 50204.0423870429. The cubic root of 2520445872 is about 1360.8986765043.

The spelling of 2520445872 in words is "two billion, five hundred twenty million, four hundred forty-five thousand, eight hundred seventy-two".