2556041259 has 8 divisors (see below), whose sum is σ = 3412025920. Its totient is φ = 1702042056.

The previous prime is 2556041231. The next prime is 2556041263. The reversal of 2556041259 is 9521406552.

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

It is not a de Polignac number, because 2556041259 - 2⁸ = 2556041003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2556041219) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 493357 + ... + 498510.

It is an arithmetic number, because the mean of its divisors is an integer number (426503240).

Almost surely, 2^2556041259 is an apocalyptic number.

2556041259 is a deficient number, since it is larger than the sum of its proper divisors (855984661).

2556041259 is an equidigital number, since it uses as much as digits as its factorization.

2556041259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992729.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 2556041259 is about 50557.3066826151. The cubic root of 2556041259 is about 1367.2752527344.

The spelling of 2556041259 in words is "two billion, five hundred fifty-six million, forty-one thousand, two hundred fifty-nine".