20350353 has 16 divisors (see below), whose sum is σ = 28246016. Its totient is φ = 13018320.

The previous prime is 20350289. The next prime is 20350367. The reversal of 20350353 is 35305302.

It is not a de Polignac number, because 20350353 - 2⁶ = 20350289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20350753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10950 + ... + 12672.

It is an arithmetic number, because the mean of its divisors is an integer number (1765376).

Almost surely, 2^20350353 is an apocalyptic number.

It is an amenable number.

20350353 is a deficient number, since it is larger than the sum of its proper divisors (7895663).

20350353 is a wasteful number, since it uses less digits than its factorization.

20350353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884.

The product of its (nonzero) digits is 1350, while the sum is 21.

The square root of 20350353 is about 4511.1365530208. The cubic root of 20350353 is about 273.0176027507.

Adding to 20350353 its reverse (35305302), we get a palindrome (55655655).

The spelling of 20350353 in words is "twenty million, three hundred fifty thousand, three hundred fifty-three".