2556253136 has 20 divisors (see below), whose sum is σ = 4954019232. Its totient is φ = 1277796576.

The previous prime is 2556253099. The next prime is 2556253157. The reversal of 2556253136 is 6313526552.

It is a self number, because there is not a number n which added to its sum of digits gives 2556253136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50771 + ... + 87693.

Almost surely, 2^2556253136 is an apocalyptic number.

It is an amenable number.

2556253136 is a deficient number, since it is larger than the sum of its proper divisors (2397766096).

2556253136 is a wasteful number, since it uses less digits than its factorization.

2556253136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41258 (or 41252 counting only the distinct ones).

The product of its digits is 162000, while the sum is 38.

The square root of 2556253136 is about 50559.4020534262. The cubic root of 2556253136 is about 1367.3130307076.

Adding to 2556253136 its reverse (6313526552), we get a palindrome (8869779688).

The spelling of 2556253136 in words is "two billion, five hundred fifty-six million, two hundred fifty-three thousand, one hundred thirty-six".