2556201793 has 2 divisors, whose sum is σ = 2556201794. Its totient is φ = 2556201792.

The previous prime is 2556201773. The next prime is 2556201797. The reversal of 2556201793 is 3971026552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2555605809 + 595984 = 50553^2 + 772^2 .

It is a cyclic number.

It is not a de Polignac number, because 2556201793 - 2⁹ = 2556201281 is a prime.

It is not a weakly prime, because it can be changed into another prime (2556201797) 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 as a sum of consecutive naturals, namely, 1278100896 + 1278100897.

It is an arithmetic number, because the mean of its divisors is an integer number (1278100897).

Almost surely, 2^2556201793 is an apocalyptic number.

It is an amenable number.

2556201793 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556201793 is an equidigital number, since it uses as much as digits as its factorization.

2556201793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 2556201793 is about 50558.8943015964. The cubic root of 2556201793 is about 1367.3038763686.

The spelling of 2556201793 in words is "two billion, five hundred fifty-six million, two hundred one thousand, seven hundred ninety-three".