20043259 has 2 divisors, whose sum is σ = 20043260. Its totient is φ = 20043258.

The previous prime is 20043253. The next prime is 20043269. The reversal of 20043259 is 95234002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20043259 - 2⁵ = 20043227 is a prime.

It is not a weakly prime, because it can be changed into another prime (20043253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021629 + 10021630.

It is an arithmetic number, because the mean of its divisors is an integer number (10021630).

Almost surely, 2^20043259 is an apocalyptic number.

20043259 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043259 is an equidigital number, since it uses as much as digits as its factorization.

20043259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20043259 is about 4476.9698457774. The cubic root of 20043259 is about 271.6373257149.

It can be divided in two parts, 20043 and 259, that added together give a palindrome (20302).

The spelling of 20043259 in words is "twenty million, forty-three thousand, two hundred fifty-nine".