25026265211989 has 2 divisors, whose sum is σ = 25026265211990. Its totient is φ = 25026265211988.

The previous prime is 25026265211939. The next prime is 25026265211999. The reversal of 25026265211989 is 98911256262052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24549002543025 + 477262668964 = 4954695^2 + 690842^2 .

It is a cyclic number.

It is not a de Polignac number, because 25026265211989 - 2⁹ = 25026265211477 is a prime.

It is a super-2 number, since 2×25026265211989² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25026265211939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12513132605994 + 12513132605995.

It is an arithmetic number, because the mean of its divisors is an integer number (12513132605995).

Almost surely, 2^{25026265211989} is an apocalyptic number.

It is an amenable number.

25026265211989 is a deficient number, since it is larger than the sum of its proper divisors (1).

25026265211989 is an equidigital number, since it uses as much as digits as its factorization.

25026265211989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9331200, while the sum is 58.

The spelling of 25026265211989 in words is "twenty-five trillion, twenty-six billion, two hundred sixty-five million, two hundred eleven thousand, nine hundred eighty-nine".