2525165398489 has 2 divisors, whose sum is σ = 2525165398490. Its totient is φ = 2525165398488.

The previous prime is 2525165398433. The next prime is 2525165398529. The reversal of 2525165398489 is 9848935615252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1646602240000 + 878563158489 = 1283200^2 + 937317^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525165398489 - 2⁹ = 2525165397977 is a prime.

It is a super-2 number, since 2×2525165398489² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2525165398289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262582699244 + 1262582699245.

It is an arithmetic number, because the mean of its divisors is an integer number (1262582699245).

Almost surely, 2^{2525165398489} is an apocalyptic number.

It is an amenable number.

2525165398489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525165398489 is an equidigital number, since it uses as much as digits as its factorization.

2525165398489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624000, while the sum is 67.

The spelling of 2525165398489 in words is "two trillion, five hundred twenty-five billion, one hundred sixty-five million, three hundred ninety-eight thousand, four hundred eighty-nine".