20352205 has 8 divisors (see below), whose sum is σ = 24486552. Its totient is φ = 16239168.

The previous prime is 20352203. The next prime is 20352259. The reversal of 20352205 is 50225302.

It can be written as a sum of positive squares in 4 ways, for example, as 736164 + 19616041 = 858^2 + 4429^2 .

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 20352205 - 2¹ = 20352203 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352203) 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, 3142 + ... + 7111.

It is an arithmetic number, because the mean of its divisors is an integer number (3060819).

Almost surely, 2^20352205 is an apocalyptic number.

It is an amenable number.

20352205 is a deficient number, since it is larger than the sum of its proper divisors (4134347).

20352205 is a wasteful number, since it uses less digits than its factorization.

20352205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20352205 is about 4511.3418181291. The cubic root of 20352205 is about 273.0258845606.

Adding to 20352205 its reverse (50225302), we get a palindrome (70577507).

It can be divided in two parts, 2035220 and 5, that multiplied together give a square (10176100 = 3190²).

The spelling of 20352205 in words is "twenty million, three hundred fifty-two thousand, two hundred five".