20545883 has 2 divisors, whose sum is σ = 20545884. Its totient is φ = 20545882.

The previous prime is 20545871. The next prime is 20545907. The reversal of 20545883 is 38854502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20545883 - 2¹⁴ = 20529499 is a prime.

It is not a weakly prime, because it can be changed into another prime (20545183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10272941 + 10272942.

It is an arithmetic number, because the mean of its divisors is an integer number (10272942).

Almost surely, 2^20545883 is an apocalyptic number.

20545883 is a deficient number, since it is larger than the sum of its proper divisors (1).

20545883 is an equidigital number, since it uses as much as digits as its factorization.

20545883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 20545883 is about 4532.7566667537. The cubic root of 20545883 is about 273.8892185400.

The spelling of 20545883 in words is "twenty million, five hundred forty-five thousand, eight hundred eighty-three".