2427025245509 has 2 divisors, whose sum is σ = 2427025245510. Its totient is φ = 2427025245508.

The previous prime is 2427025245499. The next prime is 2427025245511. The reversal of 2427025245509 is 9055425207242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2289480688609 + 137544556900 = 1513103^2 + 370870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2427025245509 is a prime.

It is a Sophie Germain prime.

Together with 2427025245511, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2427025245569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1213512622754 + 1213512622755.

It is an arithmetic number, because the mean of its divisors is an integer number (1213512622755).

Almost surely, 2^{2427025245509} is an apocalyptic number.

It is an amenable number.

2427025245509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2427025245509 is an equidigital number, since it uses as much as digits as its factorization.

2427025245509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 2427025245509 in words is "two trillion, four hundred twenty-seven billion, twenty-five million, two hundred forty-five thousand, five hundred nine".