202553155205 has 4 divisors (see below), whose sum is σ = 243063786252. Its totient is φ = 162042524160.

The previous prime is 202553155171. The next prime is 202553155213. The reversal of 202553155205 is 502551355202.

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 106820463556 + 95732691649 = 326834^2 + 309407^2 .

It is not a de Polignac number, because 202553155205 - 2⁶ = 202553155141 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, 20255315516 + ... + 20255315525.

It is an arithmetic number, because the mean of its divisors is an integer number (60765946563).

Almost surely, 2^202553155205 is an apocalyptic number.

It is an amenable number.

202553155205 is a deficient number, since it is larger than the sum of its proper divisors (40510631047).

202553155205 is an equidigital number, since it uses as much as digits as its factorization.

202553155205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40510631046.

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 202553155205 in words is "two hundred two billion, five hundred fifty-three million, one hundred fifty-five thousand, two hundred five".