20559130 has 16 divisors (see below), whose sum is σ = 37086624. Its totient is φ = 8205840.

The previous prime is 20559127. The next prime is 20559157. The reversal of 20559130 is 3195502.

It is a junction number, because it is equal to n+sod(n) for n = 20559095 and 20559104.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3265 + ... + 7195.

It is an arithmetic number, because the mean of its divisors is an integer number (2317914).

Almost surely, 2^20559130 is an apocalyptic number.

20559130 is a deficient number, since it is larger than the sum of its proper divisors (16527494).

20559130 is a wasteful number, since it uses less digits than its factorization.

20559130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4461.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 20559130 is about 4534.2176833496. The cubic root of 20559130 is about 273.9480694380.

The spelling of 20559130 in words is "twenty million, five hundred fifty-nine thousand, one hundred thirty".