20041355 has 4 divisors (see below), whose sum is σ = 24049632. Its totient is φ = 16033080.

The previous prime is 20041327. The next prime is 20041369. The reversal of 20041355 is 55314002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20041355 - 2²⁴ = 3264139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2004131 + ... + 2004140.

It is an arithmetic number, because the mean of its divisors is an integer number (6012408).

Almost surely, 2^20041355 is an apocalyptic number.

20041355 is a deficient number, since it is larger than the sum of its proper divisors (4008277).

20041355 is an equidigital number, since it uses as much as digits as its factorization.

20041355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008276.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 20041355 is about 4476.7571969005. The cubic root of 20041355 is about 271.6287240890.

Adding to 20041355 its reverse (55314002), we get a palindrome (75355357).

The spelling of 20041355 in words is "twenty million, forty-one thousand, three hundred fifty-five".