2528581845 has 16 divisors (see below), whose sum is σ = 4258664640. Its totient is φ = 1277599104.

The previous prime is 2528581831. The next prime is 2528581871. The reversal of 2528581845 is 5481858252.

It is not a de Polignac number, because 2528581845 - 2¹¹ = 2528579797 is a prime.

It is a super-3 number, since 3×2528581845³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2528581794 and 2528581803.

It is a congruent number.

It is an unprimeable number.

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, 4435824 + ... + 4436393.

It is an arithmetic number, because the mean of its divisors is an integer number (266166540).

Almost surely, 2^2528581845 is an apocalyptic number.

It is an amenable number.

2528581845 is a deficient number, since it is larger than the sum of its proper divisors (1730082795).

2528581845 is a wasteful number, since it uses less digits than its factorization.

2528581845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8872244.

The product of its digits is 1024000, while the sum is 48.

The square root of 2528581845 is about 50285.0061648599. The cubic root of 2528581845 is about 1362.3614259651.

The spelling of 2528581845 in words is "two billion, five hundred twenty-eight million, five hundred eighty-one thousand, eight hundred forty-five".