2556320562 has 24 divisors (see below), whose sum is σ = 5673786300. Its totient is φ = 831323520.

The previous prime is 2556320551. The next prime is 2556320563. The reversal of 2556320562 is 2650236552.

2556320562 is a `hidden beast` number, since 25 + 56 + 3 + 20 + 562 = 666.

2556320562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1710732321 + 845588241 = 41361^2 + 29079^2 .

It is not an unprimeable number, because it can be changed into a prime (2556320563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1731187 + ... + 1732662.

Almost surely, 2^2556320562 is an apocalyptic number.

2556320562 is an abundant number, since it is smaller than the sum of its proper divisors (3117465738).

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

2556320562 is a wasteful number, since it uses less digits than its factorization.

2556320562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463898 (or 3463895 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 2556320562 is about 50560.0688488455. The cubic root of 2556320562 is about 1367.3250524223.

The spelling of 2556320562 in words is "two billion, five hundred fifty-six million, three hundred twenty thousand, five hundred sixty-two".