2543365241 has 4 divisors (see below), whose sum is σ = 2565873012. Its totient is φ = 2520857472.

The previous prime is 2543365229. The next prime is 2543365249. The reversal of 2543365241 is 1425633452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 231678841 + 2311686400 = 15221^2 + 48080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2543365241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543365249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11253716 + ... + 11253941.

It is an arithmetic number, because the mean of its divisors is an integer number (641468253).

Almost surely, 2^2543365241 is an apocalyptic number.

It is an amenable number.

2543365241 is a deficient number, since it is larger than the sum of its proper divisors (22507771).

2543365241 is a wasteful number, since it uses less digits than its factorization.

2543365241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22507770.

The product of its digits is 86400, while the sum is 35.

The square root of 2543365241 is about 50431.7880012200. The cubic root of 2543365241 is about 1365.0112914396.

Adding to 2543365241 its reverse (1425633452), we get a palindrome (3968998693).

The spelling of 2543365241 in words is "two billion, five hundred forty-three million, three hundred sixty-five thousand, two hundred forty-one".