20544299 has 2 divisors, whose sum is σ = 20544300. Its totient is φ = 20544298.

The previous prime is 20544283. The next prime is 20544319. The reversal of 20544299 is 99244502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20544299 - 2⁴ = 20544283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20544899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10272149 + 10272150.

It is an arithmetic number, because the mean of its divisors is an integer number (10272150).

Almost surely, 2^20544299 is an apocalyptic number.

20544299 is a deficient number, since it is larger than the sum of its proper divisors (1).

20544299 is an equidigital number, since it uses as much as digits as its factorization.

20544299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 20544299 is about 4532.5819352771. The cubic root of 20544299 is about 273.8821797954.

The spelling of 20544299 in words is "twenty million, five hundred forty-four thousand, two hundred ninety-nine".