2556088765 has 8 divisors (see below), whose sum is σ = 3069636408. Its totient is φ = 2043317760.

The previous prime is 2556088751. The next prime is 2556088783. The reversal of 2556088765 is 5678806552.

It can be written as a sum of positive squares in 4 ways, for example, as 966152889 + 1589935876 = 31083^2 + 39874^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2556088765 - 2²⁹ = 2019217853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186892 + ... + 200101.

It is an arithmetic number, because the mean of its divisors is an integer number (383704551).

Almost surely, 2^2556088765 is an apocalyptic number.

It is an amenable number.

2556088765 is a deficient number, since it is larger than the sum of its proper divisors (513547643).

2556088765 is a wasteful number, since it uses less digits than its factorization.

2556088765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388319.

The product of its (nonzero) digits is 4032000, while the sum is 52.

The square root of 2556088765 is about 50557.7765037190. The cubic root of 2556088765 is about 1367.2837233039.

The spelling of 2556088765 in words is "two billion, five hundred fifty-six million, eighty-eight thousand, seven hundred sixty-five".