2543313261 has 8 divisors (see below), whose sum is σ = 3421094400. Its totient is φ = 1680537152.

The previous prime is 2543313259. The next prime is 2543313293. The reversal of 2543313261 is 1623133452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2543313261 - 2¹ = 2543313259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543313361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3750861 + ... + 3751538.

It is an arithmetic number, because the mean of its divisors is an integer number (427636800).

Almost surely, 2^2543313261 is an apocalyptic number.

It is an amenable number.

2543313261 is a deficient number, since it is larger than the sum of its proper divisors (877781139).

2543313261 is a wasteful number, since it uses less digits than its factorization.

2543313261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7502515.

The product of its digits is 12960, while the sum is 30.

The square root of 2543313261 is about 50431.2726490221. The cubic root of 2543313261 is about 1365.0019922417.

The spelling of 2543313261 in words is "two billion, five hundred forty-three million, three hundred thirteen thousand, two hundred sixty-one".