20550000202 has 16 divisors (see below), whose sum is σ = 32458235040. Its totient is φ = 9730950768.

The previous prime is 20550000193. The next prime is 20550000203. The reversal of 20550000202 is 20200005502.

It is not an unprimeable number, because it can be changed into a prime (20550000203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26373 + ... + 204439.

It is an arithmetic number, because the mean of its divisors is an integer number (2028639690).

Almost surely, 2^20550000202 is an apocalyptic number.

20550000202 is a deficient number, since it is larger than the sum of its proper divisors (11908234838).

20550000202 is a wasteful number, since it uses less digits than its factorization.

20550000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181125.

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

Adding to 20550000202 its reverse (20200005502), we get a palindrome (40750005704).

The spelling of 20550000202 in words is "twenty billion, five hundred fifty million, two hundred two", and thus it is an aban number.