2556504436 has 12 divisors (see below), whose sum is σ = 4474267812. Its totient is φ = 1278142208.

The previous prime is 2556504427. The next prime is 2556504451. The reversal of 2556504436 is 6344056552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2106810000 + 449694436 = 45900^2 + 21206^2 .

It is a congruent 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, 47526 + ... + 85858.

It is an arithmetic number, because the mean of its divisors is an integer number (372855651).

Almost surely, 2^2556504436 is an apocalyptic number.

It is an amenable number.

2556504436 is a deficient number, since it is larger than the sum of its proper divisors (1917763376).

2556504436 is a wasteful number, since it uses less digits than its factorization.

2556504436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55010 (or 55008 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The square root of 2556504436 is about 50561.8871878810. The cubic root of 2556504436 is about 1367.3578351521.

The spelling of 2556504436 in words is "two billion, five hundred fifty-six million, five hundred four thousand, four hundred thirty-six".