2555534243 has 4 divisors (see below), whose sum is σ = 2609907360. Its totient is φ = 2501161128.

The previous prime is 2555534221. The next prime is 2555534269. The reversal of 2555534243 is 3424355552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2555534243 - 2²⁰ = 2554485667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2555534197 and 2555534206.

It is not an unprimeable number, because it can be changed into a prime (2555534273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27186488 + ... + 27186581.

It is an arithmetic number, because the mean of its divisors is an integer number (652476840).

Almost surely, 2^2555534243 is an apocalyptic number.

2555534243 is a deficient number, since it is larger than the sum of its proper divisors (54373117).

2555534243 is an equidigital number, since it uses as much as digits as its factorization.

2555534243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54373116.

The product of its digits is 360000, while the sum is 38.

The square root of 2555534243 is about 50552.2921636596. The cubic root of 2555534243 is about 1367.1848425778.

Adding to 2555534243 its reverse (3424355552), we get a palindrome (5979889795).

The spelling of 2555534243 in words is "two billion, five hundred fifty-five million, five hundred thirty-four thousand, two hundred forty-three".