2555344513121 has 2 divisors, whose sum is σ = 2555344513122. Its totient is φ = 2555344513120.

The previous prime is 2555344513093. The next prime is 2555344513151. The reversal of 2555344513121 is 1213154435552.

2555344513121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2184968810896 + 370375702225 = 1478164^2 + 608585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555344513121 - 2²⁶ = 2555277404257 is a prime.

It is not a weakly prime, because it can be changed into another prime (2555344513151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277672256560 + 1277672256561.

It is an arithmetic number, because the mean of its divisors is an integer number (1277672256561).

Almost surely, 2^{2555344513121} is an apocalyptic number.

It is an amenable number.

2555344513121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555344513121 is an equidigital number, since it uses as much as digits as its factorization.

2555344513121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360000, while the sum is 41.

Adding to 2555344513121 its reverse (1213154435552), we get a palindrome (3768498948673).

The spelling of 2555344513121 in words is "two trillion, five hundred fifty-five billion, three hundred forty-four million, five hundred thirteen thousand, one hundred twenty-one".