2543440603 has 8 divisors (see below), whose sum is σ = 2775027456. Its totient is φ = 2311914600.

The previous prime is 2543440591. The next prime is 2543440607. The reversal of 2543440603 is 3060443452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2543440603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543440607) 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, 157650 + ... + 173032.

It is an arithmetic number, because the mean of its divisors is an integer number (346878432).

Almost surely, 2^2543440603 is an apocalyptic number.

2543440603 is a deficient number, since it is larger than the sum of its proper divisors (231586853).

2543440603 is a wasteful number, since it uses less digits than its factorization.

2543440603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30425.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 2543440603 is about 50432.5351633249. The cubic root of 2543440603 is about 1365.0247734415.

The spelling of 2543440603 in words is "two billion, five hundred forty-three million, four hundred forty thousand, six hundred three".