2540555355487 has 2 divisors, whose sum is σ = 2540555355488. Its totient is φ = 2540555355486.

The previous prime is 2540555355469. The next prime is 2540555355539. The reversal of 2540555355487 is 7845535550452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2540555355487 - 2¹⁵ = 2540555322719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540550355487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270277677743 + 1270277677744.

It is an arithmetic number, because the mean of its divisors is an integer number (1270277677744).

Almost surely, 2^{2540555355487} is an apocalyptic number.

2540555355487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540555355487 is an equidigital number, since it uses as much as digits as its factorization.

2540555355487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84000000, while the sum is 58.

The spelling of 2540555355487 in words is "two trillion, five hundred forty billion, five hundred fifty-five million, three hundred fifty-five thousand, four hundred eighty-seven".