25925646443 has 2 divisors, whose sum is σ = 25925646444. Its totient is φ = 25925646442.

The previous prime is 25925646419. The next prime is 25925646463. The reversal of 25925646443 is 34464652952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25925646443 - 2²⁸ = 25657210987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25925646391 and 25925646400.

It is not a weakly prime, because it can be changed into another prime (25925646463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12962823221 + 12962823222.

It is an arithmetic number, because the mean of its divisors is an integer number (12962823222).

Almost surely, 2^25925646443 is an apocalyptic number.

25925646443 is a deficient number, since it is larger than the sum of its proper divisors (1).

25925646443 is an equidigital number, since it uses as much as digits as its factorization.

25925646443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 50.

The spelling of 25925646443 in words is "twenty-five billion, nine hundred twenty-five million, six hundred forty-six thousand, four hundred forty-three".