20574241 has 2 divisors, whose sum is σ = 20574242. Its totient is φ = 20574240.

The previous prime is 20574223. The next prime is 20574277. The reversal of 20574241 is 14247502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12047841 + 8526400 = 3471^2 + 2920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20574241 is a prime.

It is not a weakly prime, because it can be changed into another prime (20574341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10287120 + 10287121.

It is an arithmetic number, because the mean of its divisors is an integer number (10287121).

Almost surely, 2^20574241 is an apocalyptic number.

It is an amenable number.

20574241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20574241 is an equidigital number, since it uses as much as digits as its factorization.

20574241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 20574241 is about 4535.8837066221. The cubic root of 20574241 is about 274.0151704531.

The spelling of 20574241 in words is "twenty million, five hundred seventy-four thousand, two hundred forty-one".