20052355 has 4 divisors (see below), whose sum is σ = 24062832. Its totient is φ = 16041880.

The previous prime is 20052341. The next prime is 20052397. The reversal of 20052355 is 55325002.

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

It is not a de Polignac number, because 20052355 - 2¹¹ = 20050307 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 2005231 + ... + 2005240.

It is an arithmetic number, because the mean of its divisors is an integer number (6015708).

Almost surely, 2^20052355 is an apocalyptic number.

20052355 is a deficient number, since it is larger than the sum of its proper divisors (4010477).

20052355 is an equidigital number, since it uses as much as digits as its factorization.

20052355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010476.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 20052355 is about 4477.9855962252. The cubic root of 20052355 is about 271.6784108405.

Adding to 20052355 its reverse (55325002), we get a palindrome (75377357).

The spelling of 20052355 in words is "twenty million, fifty-two thousand, three hundred fifty-five".