25743240543 has 16 divisors (see below), whose sum is σ = 36183818880. Its totient is φ = 16235059104.

The previous prime is 25743240529. The next prime is 25743240577. The reversal of 25743240543 is 34504234752.

It is not a de Polignac number, because 25743240543 - 2⁹ = 25743240031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25743244543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291696 + ... + 369557.

It is an arithmetic number, because the mean of its divisors is an integer number (2261488680).

Almost surely, 2^25743240543 is an apocalyptic number.

25743240543 is a deficient number, since it is larger than the sum of its proper divisors (10440578337).

25743240543 is a wasteful number, since it uses less digits than its factorization.

25743240543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661958.

The product of its (nonzero) digits is 403200, while the sum is 39.

The spelling of 25743240543 in words is "twenty-five billion, seven hundred forty-three million, two hundred forty thousand, five hundred forty-three".