2000170253 has 4 divisors (see below), whose sum is σ = 2000586588. Its totient is φ = 1999753920.

The previous prime is 2000170243. The next prime is 2000170259. The reversal of 2000170253 is 3520710002.

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 1472870884 + 527299369 = 38378^2 + 22963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000170253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000170259) 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, 200876 + ... + 210597.

It is an arithmetic number, because the mean of its divisors is an integer number (500146647).

Almost surely, 2^2000170253 is an apocalyptic number.

It is an amenable number.

2000170253 is a deficient number, since it is larger than the sum of its proper divisors (416335).

2000170253 is an equidigital number, since it uses as much as digits as its factorization.

2000170253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416334.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2000170253 is about 44723.2629958951. The cubic root of 2000170253 is about 1259.9567997702.

Adding to 2000170253 its reverse (3520710002), we get a palindrome (5520880255).

The spelling of 2000170253 in words is "two billion, one hundred seventy thousand, two hundred fifty-three".