20059959 has 4 divisors (see below), whose sum is σ = 26746616. Its totient is φ = 13373304.

The previous prime is 20059943. The next prime is 20059969. The reversal of 20059959 is 95995002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20059959 - 2⁴ = 20059943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20059939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3343324 + ... + 3343329.

It is an arithmetic number, because the mean of its divisors is an integer number (6686654).

Almost surely, 2^20059959 is an apocalyptic number.

20059959 is a deficient number, since it is larger than the sum of its proper divisors (6686657).

20059959 is an equidigital number, since it uses as much as digits as its factorization.

20059959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686656.

The product of its (nonzero) digits is 36450, while the sum is 39.

The square root of 20059959 is about 4478.8345582305. The cubic root of 20059959 is about 271.7127473156.

The spelling of 20059959 in words is "twenty million, fifty-nine thousand, nine hundred fifty-nine".