20052385 has 16 divisors (see below), whose sum is σ = 24575040. Its totient is φ = 15704640.

The previous prime is 20052341. The next prime is 20052397. The reversal of 20052385 is 58325002.

It is not a de Polignac number, because 20052385 - 2¹⁵ = 20019617 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 87451 + ... + 87679.

It is an arithmetic number, because the mean of its divisors is an integer number (1535940).

Almost surely, 2^20052385 is an apocalyptic number.

It is an amenable number.

20052385 is a deficient number, since it is larger than the sum of its proper divisors (4522655).

20052385 is a wasteful number, since it uses less digits than its factorization.

20052385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 20052385 is about 4477.9889459444. The cubic root of 20052385 is about 271.6785463250.

Adding to 20052385 its reverse (58325002), we get a palindrome (78377387).

The spelling of 20052385 in words is "twenty million, fifty-two thousand, three hundred eighty-five".