20204601 has 4 divisors (see below), whose sum is σ = 26939472. Its totient is φ = 13469732.

The previous prime is 20204593. The next prime is 20204633. The reversal of 20204601 is 10640202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20204601 - 2³ = 20204593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20204641) 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 3 ways as a sum of consecutive naturals, for example, 3367431 + ... + 3367436.

It is an arithmetic number, because the mean of its divisors is an integer number (6734868).

Almost surely, 2^20204601 is an apocalyptic number.

It is an amenable number.

20204601 is a deficient number, since it is larger than the sum of its proper divisors (6734871).

20204601 is an equidigital number, since it uses as much as digits as its factorization.

20204601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734870.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20204601 is about 4494.9528362376. The cubic root of 20204601 is about 272.3642440254.

Adding to 20204601 its reverse (10640202), we get a palindrome (30844803).

The spelling of 20204601 in words is "twenty million, two hundred four thousand, six hundred one".