20548799 has 2 divisors, whose sum is σ = 20548800. Its totient is φ = 20548798.

The previous prime is 20548783. The next prime is 20548807. The reversal of 20548799 is 99784502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20548799 - 2⁴ = 20548783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20548999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10274399 + 10274400.

It is an arithmetic number, because the mean of its divisors is an integer number (10274400).

Almost surely, 2^20548799 is an apocalyptic number.

20548799 is a deficient number, since it is larger than the sum of its proper divisors (1).

20548799 is an equidigital number, since it uses as much as digits as its factorization.

20548799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 20548799 is about 4533.0783139055. The cubic root of 20548799 is about 273.9021752831.

The spelling of 20548799 in words is "twenty million, five hundred forty-eight thousand, seven hundred ninety-nine".