20202055 has 4 divisors (see below), whose sum is σ = 24242472. Its totient is φ = 16161640.

The previous prime is 20202031. The next prime is 20202071. The reversal of 20202055 is 55020202.

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

It is not a de Polignac number, because 20202055 - 2⁹ = 20201543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020201 + ... + 2020210.

It is an arithmetic number, because the mean of its divisors is an integer number (6060618).

Almost surely, 2^20202055 is an apocalyptic number.

20202055 is a deficient number, since it is larger than the sum of its proper divisors (4040417).

20202055 is an equidigital number, since it uses as much as digits as its factorization.

20202055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040416.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 20202055 is about 4494.6696207842. The cubic root of 20202055 is about 272.3528032568.

Adding to 20202055 its reverse (55020202), we get a palindrome (75222257).

The spelling of 20202055 in words is "twenty million, two hundred two thousand, fifty-five".