2565043255 has 8 divisors (see below), whose sum is σ = 3079273824. Its totient is φ = 2051220000.

The previous prime is 2565043219. The next prime is 2565043259. The reversal of 2565043255 is 5523405652.

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

It is not a de Polignac number, because 2565043255 - 2⁹ = 2565042743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565043259) by changing a digit.

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, 87796 + ... + 113305.

It is an arithmetic number, because the mean of its divisors is an integer number (384909228).

Almost surely, 2^2565043255 is an apocalyptic number.

2565043255 is a deficient number, since it is larger than the sum of its proper divisors (514230569).

2565043255 is a wasteful number, since it uses less digits than its factorization.

2565043255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203657.

The product of its (nonzero) digits is 180000, while the sum is 37.

The square root of 2565043255 is about 50646.2560807805. The cubic root of 2565043255 is about 1368.8784852455.

The spelling of 2565043255 in words is "two billion, five hundred sixty-five million, forty-three thousand, two hundred fifty-five".