2555542243 has 2 divisors, whose sum is σ = 2555542244. Its totient is φ = 2555542242.

The previous prime is 2555542229. The next prime is 2555542261. The reversal of 2555542243 is 3422455552.

2555542243 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 2555542243 - 2⁹ = 2555541731 is a prime.

It is not a weakly prime, because it can be changed into another prime (2555542543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277771121 + 1277771122.

It is an arithmetic number, because the mean of its divisors is an integer number (1277771122).

Almost surely, 2^2555542243 is an apocalyptic number.

2555542243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555542243 is an equidigital number, since it uses as much as digits as its factorization.

2555542243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240000, while the sum is 37.

The square root of 2555542243 is about 50552.3712895844. The cubic root of 2555542243 is about 1367.1862692159.

Adding to 2555542243 its reverse (3422455552), we get a palindrome (5977997795).

The spelling of 2555542243 in words is "two billion, five hundred fifty-five million, five hundred forty-two thousand, two hundred forty-three".