20059915 has 16 divisors (see below), whose sum is σ = 26831520. Its totient is φ = 14307840.

The previous prime is 20059903. The next prime is 20059927. The reversal of 20059915 is 51995002.

It is an interprime number because it is at equal distance from previous prime (20059903) and next prime (20059927).

It is not a de Polignac number, because 20059915 - 2²³ = 11671307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4596 + ... + 7825.

It is an arithmetic number, because the mean of its divisors is an integer number (1676970).

Almost surely, 2^20059915 is an apocalyptic number.

20059915 is a deficient number, since it is larger than the sum of its proper divisors (6771605).

20059915 is a wasteful number, since it uses less digits than its factorization.

20059915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12462.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 20059915 is about 4478.8296462357. The cubic root of 20059915 is about 271.7125486550.

The spelling of 20059915 in words is "twenty million, fifty-nine thousand, nine hundred fifteen".