20852003 has 8 divisors (see below), whose sum is σ = 21216768. Its totient is φ = 20490624.

The previous prime is 20851991. The next prime is 20852023. The reversal of 20852003 is 30025802.

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

It is a cyclic number.

It is not a de Polignac number, because 20852003 - 2¹⁰ = 20850979 is a prime.

It is a super-2 number, since 2×20852003² = 869612058224018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20852023) 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 7 ways as a sum of consecutive naturals, for example, 13625 + ... + 15077.

It is an arithmetic number, because the mean of its divisors is an integer number (2652096).

Almost surely, 2^20852003 is an apocalyptic number.

20852003 is a deficient number, since it is larger than the sum of its proper divisors (364765).

20852003 is a wasteful number, since it uses less digits than its factorization.

20852003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20852003 is about 4566.3993474071. The cubic root of 20852003 is about 275.2427740422.

Adding to 20852003 its reverse (30025802), we get a palindrome (50877805).

The spelling of 20852003 in words is "twenty million, eight hundred fifty-two thousand, three".