2545001443543 has 16 divisors (see below), whose sum is σ = 2984505400800. Its totient is φ = 2148843876480.

The previous prime is 2545001443531. The next prime is 2545001443577. The reversal of 2545001443543 is 3453441005452.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2545001443543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2545001443496 and 2545001443505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545001443513) 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 15 ways as a sum of consecutive naturals, for example, 177641968 + ... + 177656293.

It is an arithmetic number, because the mean of its divisors is an integer number (186531587550).

Almost surely, 2^{2545001443543} is an apocalyptic number.

2545001443543 is a deficient number, since it is larger than the sum of its proper divisors (439503957257).

2545001443543 is a wasteful number, since it uses less digits than its factorization.

2545001443543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355298322.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 2545001443543 its reverse (3453441005452), we get a palindrome (5998442448995).

The spelling of 2545001443543 in words is "two trillion, five hundred forty-five billion, one million, four hundred forty-three thousand, five hundred forty-three".