2521066560 has 112 divisors (see below), whose sum is σ = 8135794752. Its totient is φ = 661248000.

The previous prime is 2521066489. The next prime is 2521066567. The reversal of 2521066560 is 656601252.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2521066567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37035 + ... + 80085.

Almost surely, 2^2521066560 is an apocalyptic number.

2521066560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2521066560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4067897376).

2521066560 is an abundant number, since it is smaller than the sum of its proper divisors (5614728192).

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

2521066560 is a wasteful number, since it uses less digits than its factorization.

2521066560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43132 (or 43122 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2521066560 is about 50210.2236601272. The cubic root of 2521066560 is about 1361.0103795113.

The spelling of 2521066560 in words is "two billion, five hundred twenty-one million, sixty-six thousand, five hundred sixty".