20160559 has 4 divisors (see below), whose sum is σ = 20169616. Its totient is φ = 20151504.

The previous prime is 20160541. The next prime is 20160583. The reversal of 20160559 is 95506102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20160559 - 2¹³ = 20152367 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 (20160529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387 + ... + 6499.

It is an arithmetic number, because the mean of its divisors is an integer number (5042404).

Almost surely, 2^20160559 is an apocalyptic number.

20160559 is a deficient number, since it is larger than the sum of its proper divisors (9057).

20160559 is an equidigital number, since it uses as much as digits as its factorization.

20160559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9056.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 20160559 is about 4490.0511132948. The cubic root of 20160559 is about 272.1662001489.

The spelling of 20160559 in words is "twenty million, one hundred sixty thousand, five hundred fifty-nine".