20355195 has 16 divisors (see below), whose sum is σ = 37221120. Its totient is φ = 9305184.

The previous prime is 20355193. The next prime is 20355221. The reversal of 20355195 is 59155302.

It is not a de Polignac number, because 20355195 - 2¹ = 20355193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20355191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96825 + ... + 97034.

It is an arithmetic number, because the mean of its divisors is an integer number (2326320).

Almost surely, 2^20355195 is an apocalyptic number.

20355195 is a deficient number, since it is larger than the sum of its proper divisors (16865925).

20355195 is a wasteful number, since it uses less digits than its factorization.

20355195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193874.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 20355195 is about 4511.6731929518. The cubic root of 20355195 is about 273.0392542408.

The spelling of 20355195 in words is "twenty million, three hundred fifty-five thousand, one hundred ninety-five".