25852825853 has 2 divisors, whose sum is σ = 25852825854. Its totient is φ = 25852825852.

The previous prime is 25852825849. The next prime is 25852825879. The reversal of 25852825853 is 35852825852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13075236409 + 12777589444 = 114347^2 + 113038^2 .

It is a cyclic number.

It is not a de Polignac number, because 25852825853 - 2² = 25852825849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25852825795 and 25852825804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25852825253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12926412926 + 12926412927.

It is an arithmetic number, because the mean of its divisors is an integer number (12926412927).

Almost surely, 2^25852825853 is an apocalyptic number.

It is an amenable number.

25852825853 is a deficient number, since it is larger than the sum of its proper divisors (1).

25852825853 is an equidigital number, since it uses as much as digits as its factorization.

25852825853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680000, while the sum is 53.

Subtracting 25852825853 from its reverse (35852825852), we obtain a palindrome (9999999999).

The spelling of 25852825853 in words is "twenty-five billion, eight hundred fifty-two million, eight hundred twenty-five thousand, eight hundred fifty-three".