2565587510947 has 2 divisors, whose sum is σ = 2565587510948. Its totient is φ = 2565587510946.

The previous prime is 2565587510917. The next prime is 2565587510971. The reversal of 2565587510947 is 7490157855652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2565587510947 is a prime.

It is not a weakly prime, because it can be changed into another prime (2565587510917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282793755473 + 1282793755474.

It is an arithmetic number, because the mean of its divisors is an integer number (1282793755474).

Almost surely, 2^{2565587510947} is an apocalyptic number.

2565587510947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565587510947 is an equidigital number, since it uses as much as digits as its factorization.

2565587510947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840000, while the sum is 64.

The spelling of 2565587510947 in words is "two trillion, five hundred sixty-five billion, five hundred eighty-seven million, five hundred ten thousand, nine hundred forty-seven".