2543515323 has 4 divisors (see below), whose sum is σ = 3391353768. Its totient is φ = 1695676880.

The previous prime is 2543515301. The next prime is 2543515339. The reversal of 2543515323 is 3235153452.

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 2543515323 - 2⁶ = 2543515259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2543515523) 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, 423919218 + ... + 423919223.

It is an arithmetic number, because the mean of its divisors is an integer number (847838442).

Almost surely, 2^2543515323 is an apocalyptic number.

2543515323 is a deficient number, since it is larger than the sum of its proper divisors (847838445).

2543515323 is an equidigital number, since it uses as much as digits as its factorization.

2543515323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847838444.

The product of its digits is 54000, while the sum is 33.

The square root of 2543515323 is about 50433.2759495157. The cubic root of 2543515323 is about 1365.0381403289.

Adding to 2543515323 its reverse (3235153452), we get a palindrome (5778668775).

The spelling of 2543515323 in words is "two billion, five hundred forty-three million, five hundred fifteen thousand, three hundred twenty-three".