2540255310563 has 2 divisors, whose sum is σ = 2540255310564. Its totient is φ = 2540255310562.

The previous prime is 2540255310433. The next prime is 2540255310601. The reversal of 2540255310563 is 3650135520452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2540255310563 - 2¹² = 2540255306467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2540255310563.

It is not a weakly prime, because it can be changed into another prime (2540255310163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270127655281 + 1270127655282.

It is an arithmetic number, because the mean of its divisors is an integer number (1270127655282).

Almost surely, 2^{2540255310563} is an apocalyptic number.

2540255310563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540255310563 is an equidigital number, since it uses as much as digits as its factorization.

2540255310563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 2540255310563 in words is "two trillion, five hundred forty billion, two hundred fifty-five million, three hundred ten thousand, five hundred sixty-three".