202552512205 has 4 divisors (see below), whose sum is σ = 243063014652. Its totient is φ = 162042009760.

The previous prime is 202552512191. The next prime is 202552512209. The reversal of 202552512205 is 502215255202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 158326001604 + 44226510601 = 397902^2 + 210301^2 .

It is a de Polignac number, because none of the positive numbers 2^k-202552512205 is a prime.

It is a Smith number, since the sum of its digits (31) 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202552512209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20255251216 + ... + 20255251225.

It is an arithmetic number, because the mean of its divisors is an integer number (60765753663).

Almost surely, 2^202552512205 is an apocalyptic number.

It is an amenable number.

202552512205 is a deficient number, since it is larger than the sum of its proper divisors (40510502447).

202552512205 is an equidigital number, since it uses as much as digits as its factorization.

202552512205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40510502446.

The product of its (nonzero) digits is 20000, while the sum is 31.

Adding to 202552512205 its reverse (502215255202), we get a palindrome (704767767407).

The spelling of 202552512205 in words is "two hundred two billion, five hundred fifty-two million, five hundred twelve thousand, two hundred five".