2556947924093 has 2 divisors, whose sum is σ = 2556947924094. Its totient is φ = 2556947924092.

The previous prime is 2556947924071. The next prime is 2556947924099. The reversal of 2556947924093 is 3904297496552.

2556947924093 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2542232535844 + 14715388249 = 1594438^2 + 121307^2 .

It is a cyclic number.

It is not a de Polignac number, because 2556947924093 - 2⁸ = 2556947923837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2556947924099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278473962046 + 1278473962047.

It is an arithmetic number, because the mean of its divisors is an integer number (1278473962047).

Almost surely, 2^{2556947924093} is an apocalyptic number.

It is an amenable number.

2556947924093 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556947924093 is an equidigital number, since it uses as much as digits as its factorization.

2556947924093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 146966400, while the sum is 65.

The spelling of 2556947924093 in words is "two trillion, five hundred fifty-six billion, nine hundred forty-seven million, nine hundred twenty-four thousand, ninety-three".