2556515236 has 12 divisors (see below), whose sum is σ = 4880620080. Its totient is φ = 1162052360.

The previous prime is 2556515209. The next prime is 2556515257. The reversal of 2556515236 is 6325156552.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29051266 + ... + 29051353.

It is an arithmetic number, because the mean of its divisors is an integer number (406718340).

Almost surely, 2^2556515236 is an apocalyptic number.

It is an amenable number.

2556515236 is a deficient number, since it is larger than the sum of its proper divisors (2324104844).

2556515236 is a wasteful number, since it uses less digits than its factorization.

2556515236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58102634 (or 58102632 counting only the distinct ones).

The product of its digits is 270000, while the sum is 40.

The square root of 2556515236 is about 50561.9939875792. The cubic root of 2556515236 is about 1367.3597606255.

The spelling of 2556515236 in words is "two billion, five hundred fifty-six million, five hundred fifteen thousand, two hundred thirty-six".