20450201 has 8 divisors (see below), whose sum is σ = 21959424. Its totient is φ = 18975040.

The previous prime is 20450149. The next prime is 20450207. The reversal of 20450201 is 10205402.

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 20450201 - 2¹⁸ = 20188057 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 (20450207) 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 7 ways as a sum of consecutive naturals, for example, 7265 + ... + 9678.

It is an arithmetic number, because the mean of its divisors is an integer number (2744928).

Almost surely, 2^20450201 is an apocalyptic number.

It is an amenable number.

20450201 is a deficient number, since it is larger than the sum of its proper divisors (1509223).

20450201 is a wasteful number, since it uses less digits than its factorization.

20450201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17031.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 20450201 is about 4522.1898456389. The cubic root of 20450201 is about 273.4633902517.

Adding to 20450201 its reverse (10205402), we get a palindrome (30655603).

It can be divided in two parts, 204 and 50201, that added together give a palindrome (50405).

The spelling of 20450201 in words is "twenty million, four hundred fifty thousand, two hundred one".