20825906597 has 2 divisors, whose sum is σ = 20825906598. Its totient is φ = 20825906596.

The previous prime is 20825906573. The next prime is 20825906611. The reversal of 20825906597 is 79560952802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13612122241 + 7213784356 = 116671^2 + 84934^2 .

It is a cyclic number.

It is not a de Polignac number, because 20825906597 - 2¹⁴ = 20825890213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20825906527) 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, 10412953298 + 10412953299.

It is an arithmetic number, because the mean of its divisors is an integer number (10412953299).

Almost surely, 2^20825906597 is an apocalyptic number.

It is an amenable number.

20825906597 is a deficient number, since it is larger than the sum of its proper divisors (1).

20825906597 is an equidigital number, since it uses as much as digits as its factorization.

20825906597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 20825906597 in words is "twenty billion, eight hundred twenty-five million, nine hundred six thousand, five hundred ninety-seven".