20885003 has 2 divisors, whose sum is σ = 20885004. Its totient is φ = 20885002.

The previous prime is 20884951. The next prime is 20885069. The reversal of 20885003 is 30058802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20885003 - 2¹⁰ = 20883979 is a prime.

It is not a weakly prime, because it can be changed into another prime (20885303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10442501 + 10442502.

It is an arithmetic number, because the mean of its divisors is an integer number (10442502).

Almost surely, 2^20885003 is an apocalyptic number.

20885003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20885003 is an equidigital number, since it uses as much as digits as its factorization.

20885003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 20885003 is about 4570.0112691327. The cubic root of 20885003 is about 275.3878955798.

The spelling of 20885003 in words is "twenty million, eight hundred eighty-five thousand, three".