2556565434 has 24 divisors (see below), whose sum is σ = 5865062580. Its totient is φ = 802059648.

The previous prime is 2556565433. The next prime is 2556565439. The reversal of 2556565434 is 4345656552.

2556565434 is a `hidden beast` number, since 2 + 5 + 56 + 56 + 543 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2416214025 + 140351409 = 49155^2 + 11847^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2556565434.

It is not an unprimeable number, because it can be changed into a prime (2556565433) 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, 4177089 + ... + 4177700.

Almost surely, 2^2556565434 is an apocalyptic number.

2556565434 is an abundant number, since it is smaller than the sum of its proper divisors (3308497146).

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

2556565434 is a wasteful number, since it uses less digits than its factorization.

2556565434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8354814 (or 8354811 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 45.

The square root of 2556565434 is about 50562.4903856604. The cubic root of 2556565434 is about 1367.3687100833.

The spelling of 2556565434 in words is "two billion, five hundred fifty-six million, five hundred sixty-five thousand, four hundred thirty-four".