2543555841 has 16 divisors (see below), whose sum is σ = 3406079040. Its totient is φ = 1688385600.

The previous prime is 2543555801. The next prime is 2543555843. The reversal of 2543555841 is 1485553452.

It is not a de Polignac number, because 2543555841 - 2¹³ = 2543547649 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2543555793 and 2543555802.

It is not an unprimeable number, because it can be changed into a prime (2543555843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768891 + ... + 772191.

It is an arithmetic number, because the mean of its divisors is an integer number (212879940).

Almost surely, 2^2543555841 is an apocalyptic number.

It is an amenable number.

2543555841 is a deficient number, since it is larger than the sum of its proper divisors (862523199).

2543555841 is a wasteful number, since it uses less digits than its factorization.

2543555841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336.

The product of its digits is 480000, while the sum is 42.

The square root of 2543555841 is about 50433.6776469851. The cubic root of 2543555841 is about 1365.0453886073.

The spelling of 2543555841 in words is "two billion, five hundred forty-three million, five hundred fifty-five thousand, eight hundred forty-one".