2555001817 has 2 divisors, whose sum is σ = 2555001818. Its totient is φ = 2555001816.

The previous prime is 2555001749. The next prime is 2555001847. The reversal of 2555001817 is 7181005552.

2555001817 is digitally balanced in base 2, 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., 2214267136 + 340734681 = 47056^2 + 18459^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555001817 - 2¹⁹ = 2554477529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2555001847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277500908 + 1277500909.

It is an arithmetic number, because the mean of its divisors is an integer number (1277500909).

Almost surely, 2^2555001817 is an apocalyptic number.

It is an amenable number.

2555001817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555001817 is an equidigital number, since it uses as much as digits as its factorization.

2555001817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14000, while the sum is 34.

The square root of 2555001817 is about 50547.0257977658. The cubic root of 2555001817 is about 1367.0898884839.

The spelling of 2555001817 in words is "two billion, five hundred fifty-five million, one thousand, eight hundred seventeen".