2540500565441 has 4 divisors (see below), whose sum is σ = 2540524252884. Its totient is φ = 2540476878000.

The previous prime is 2540500565389. The next prime is 2540500565467. The reversal of 2540500565441 is 1445650050452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2093508034816 + 446992530625 = 1446896^2 + 668575^2 .

It is a cyclic number.

It is not a de Polignac number, because 2540500565441 - 2²⁶ = 2540433456577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540500565341) 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 3 ways as a sum of consecutive naturals, for example, 11682110 + ... + 11897591.

It is an arithmetic number, because the mean of its divisors is an integer number (635131063221).

Almost surely, 2^{2540500565441} is an apocalyptic number.

It is an amenable number.

2540500565441 is a deficient number, since it is larger than the sum of its proper divisors (23687443).

2540500565441 is a wasteful number, since it uses less digits than its factorization.

2540500565441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23687442.

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 2540500565441 in words is "two trillion, five hundred forty billion, five hundred million, five hundred sixty-five thousand, four hundred forty-one".