20092559 has 4 divisors (see below), whose sum is σ = 20103960. Its totient is φ = 20081160.

The previous prime is 20092549. The next prime is 20092561. The reversal of 20092559 is 95529002.

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 a de Polignac number, because none of the positive numbers 2^k-20092559 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 (20092529) 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, 2432 + ... + 6789.

It is an arithmetic number, because the mean of its divisors is an integer number (5025990).

Almost surely, 2^20092559 is an apocalyptic number.

20092559 is a deficient number, since it is larger than the sum of its proper divisors (11401).

20092559 is an equidigital number, since it uses as much as digits as its factorization.

20092559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11400.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 20092559 is about 4482.4724204394. The cubic root of 20092559 is about 271.8598569802.

The spelling of 20092559 in words is "twenty million, ninety-two thousand, five hundred fifty-nine".