2555556511 has 2 divisors, whose sum is σ = 2555556512. Its totient is φ = 2555556510.

The previous prime is 2555556499. The next prime is 2555556541. The reversal of 2555556511 is 1156555552.

It is a happy number.

2555556511 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 is a cyclic number.

It is not a de Polignac number, because 2555556511 - 2⁷ = 2555556383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2555556541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277778255 + 1277778256.

It is an arithmetic number, because the mean of its divisors is an integer number (1277778256).

Almost surely, 2^2555556511 is an apocalyptic number.

2555556511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555556511 is an equidigital number, since it uses as much as digits as its factorization.

2555556511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 187500, while the sum is 40.

The square root of 2555556511 is about 50552.5124103639. The cubic root of 2555556511 is about 1367.1888136175.

The spelling of 2555556511 in words is "two billion, five hundred fifty-five million, five hundred fifty-six thousand, five hundred eleven".