20053385 has 8 divisors (see below), whose sum is σ = 26251776. Its totient is φ = 14584240.

The previous prime is 20053367. The next prime is 20053393. The reversal of 20053385 is 58335002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20053385 - 2⁶ = 20053321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182249 + ... + 182358.

It is an arithmetic number, because the mean of its divisors is an integer number (3281472).

Almost surely, 2^20053385 is an apocalyptic number.

It is an amenable number.

20053385 is a deficient number, since it is larger than the sum of its proper divisors (6198391).

20053385 is a wasteful number, since it uses less digits than its factorization.

20053385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364623.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 20053385 is about 4478.1006018177. The cubic root of 20053385 is about 271.6830623968.

Adding to 20053385 its reverse (58335002), we get a palindrome (78388387).

The spelling of 20053385 in words is "twenty million, fifty-three thousand, three hundred eighty-five".