2543879505 has 32 divisors (see below), whose sum is σ = 4291712640. Its totient is φ = 1283143680.

The previous prime is 2543879491. The next prime is 2543879551. The reversal of 2543879505 is 5059783452.

It is not a de Polignac number, because 2543879505 - 2¹⁰ = 2543878481 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167425 + ... + 181985.

It is an arithmetic number, because the mean of its divisors is an integer number (134116020).

Almost surely, 2^2543879505 is an apocalyptic number.

It is an amenable number.

2543879505 is a deficient number, since it is larger than the sum of its proper divisors (1747833135).

2543879505 is a wasteful number, since it uses less digits than its factorization.

2543879505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15201.

The product of its (nonzero) digits is 1512000, while the sum is 48.

The square root of 2543879505 is about 50436.8863531444. The cubic root of 2543879505 is about 1365.1032862042.

The spelling of 2543879505 in words is "two billion, five hundred forty-three million, eight hundred seventy-nine thousand, five hundred five".