25885329097 has 2 divisors, whose sum is σ = 25885329098. Its totient is φ = 25885329096.

The previous prime is 25885329091. The next prime is 25885329163. The reversal of 25885329097 is 79092358852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22411287616 + 3474041481 = 149704^2 + 58941^2 .

It is a cyclic number.

It is not a de Polignac number, because 25885329097 - 2⁷ = 25885328969 is a prime.

It is a super-3 number, since 3×25885329097³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (25885329091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12942664548 + 12942664549.

It is an arithmetic number, because the mean of its divisors is an integer number (12942664549).

Almost surely, 2^25885329097 is an apocalyptic number.

It is an amenable number.

25885329097 is a deficient number, since it is larger than the sum of its proper divisors (1).

25885329097 is an equidigital number, since it uses as much as digits as its factorization.

25885329097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 25885329097 in words is "twenty-five billion, eight hundred eighty-five million, three hundred twenty-nine thousand, ninety-seven".