20048593 has 4 divisors (see below), whose sum is σ = 21227940. Its totient is φ = 18869248.

The previous prime is 20048579. The next prime is 20048597. The reversal of 20048593 is 39584002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9628609 + 10419984 = 3103^2 + 3228^2 .

It is a cyclic number.

It is not a de Polignac number, because 20048593 - 2⁹ = 20048081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20048597) 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, 589648 + ... + 589681.

It is an arithmetic number, because the mean of its divisors is an integer number (5306985).

Almost surely, 2^20048593 is an apocalyptic number.

It is an amenable number.

20048593 is a deficient number, since it is larger than the sum of its proper divisors (1179347).

20048593 is a wasteful number, since it uses less digits than its factorization.

20048593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179346.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 20048593 is about 4477.5655215753. The cubic root of 20048593 is about 271.6614200165.

The spelling of 20048593 in words is "twenty million, forty-eight thousand, five hundred ninety-three".