2540763587 has 2 divisors, whose sum is σ = 2540763588. Its totient is φ = 2540763586.

The previous prime is 2540763571. The next prime is 2540763623. The reversal of 2540763587 is 7853670452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2540763587 - 2⁴ = 2540763571 is a prime.

It is not a weakly prime, because it can be changed into another prime (2540763527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270381793 + 1270381794.

It is an arithmetic number, because the mean of its divisors is an integer number (1270381794).

Almost surely, 2^2540763587 is an apocalyptic number.

2540763587 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540763587 is an equidigital number, since it uses as much as digits as its factorization.

2540763587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The square root of 2540763587 is about 50405.9876106004. The cubic root of 2540763587 is about 1364.5457011252.

The spelling of 2540763587 in words is "two billion, five hundred forty million, seven hundred sixty-three thousand, five hundred eighty-seven".