2256788912559 has 4 divisors (see below), whose sum is σ = 3009051883416. Its totient is φ = 1504525941704.

The previous prime is 2256788912551. The next prime is 2256788912591. The reversal of 2256788912559 is 9552198876522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2256788912559 - 2³ = 2256788912551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2256788912493 and 2256788912502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256788912551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376131485424 + ... + 376131485429.

It is an arithmetic number, because the mean of its divisors is an integer number (752262970854).

Almost surely, 2^{2256788912559} is an apocalyptic number.

2256788912559 is a deficient number, since it is larger than the sum of its proper divisors (752262970857).

2256788912559 is an equidigital number, since it uses as much as digits as its factorization.

2256788912559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752262970856.

The product of its digits is 217728000, while the sum is 69.

The spelling of 2256788912559 in words is "two trillion, two hundred fifty-six billion, seven hundred eighty-eight million, nine hundred twelve thousand, five hundred fifty-nine".