20592361 has 2 divisors, whose sum is σ = 20592362. Its totient is φ = 20592360.

The previous prime is 20592359. The next prime is 20592379. The reversal of 20592361 is 16329502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16451136 + 4141225 = 4056^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 20592361 - 2¹ = 20592359 is a prime.

Together with 20592359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20592301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10296180 + 10296181.

It is an arithmetic number, because the mean of its divisors is an integer number (10296181).

Almost surely, 2^20592361 is an apocalyptic number.

It is an amenable number.

20592361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20592361 is an equidigital number, since it uses as much as digits as its factorization.

20592361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 20592361 is about 4537.8806727370. The cubic root of 20592361 is about 274.0955897499.

The spelling of 20592361 in words is "twenty million, five hundred ninety-two thousand, three hundred sixty-one".