2556881103301 has 4 divisors (see below), whose sum is σ = 2922149832352. Its totient is φ = 2191612374252.

The previous prime is 2556881103251. The next prime is 2556881103323. The reversal of 2556881103301 is 1033011886552.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2556881103301 - 2²⁵ = 2556847548869 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 (2556881103391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182634364515 + ... + 182634364528.

It is an arithmetic number, because the mean of its divisors is an integer number (730537458088).

Almost surely, 2^{2556881103301} is an apocalyptic number.

It is an amenable number.

2556881103301 is a deficient number, since it is larger than the sum of its proper divisors (365268729051).

2556881103301 is an equidigital number, since it uses as much as digits as its factorization.

2556881103301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365268729050.

The product of its (nonzero) digits is 172800, while the sum is 43.

Adding to 2556881103301 its reverse (1033011886552), we get a palindrome (3589892989853).

The spelling of 2556881103301 in words is "two trillion, five hundred fifty-six billion, eight hundred eighty-one million, one hundred three thousand, three hundred one".