20525302361 has 2 divisors, whose sum is σ = 20525302362. Its totient is φ = 20525302360.

The previous prime is 20525302339. The next prime is 20525302397. The reversal of 20525302361 is 16320352502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17492707600 + 3032594761 = 132260^2 + 55069^2 .

It is a cyclic number.

It is not a de Polignac number, because 20525302361 - 2²² = 20521108057 is a prime.

It is not a weakly prime, because it can be changed into another prime (20525302561) 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, 10262651180 + 10262651181.

It is an arithmetic number, because the mean of its divisors is an integer number (10262651181).

Almost surely, 2^20525302361 is an apocalyptic number.

It is an amenable number.

20525302361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20525302361 is an equidigital number, since it uses as much as digits as its factorization.

20525302361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 20525302361 its reverse (16320352502), we get a palindrome (36845654863).

The spelling of 20525302361 in words is "twenty billion, five hundred twenty-five million, three hundred two thousand, three hundred sixty-one".