2165252203 has 2 divisors, whose sum is σ = 2165252204. Its totient is φ = 2165252202.

The previous prime is 2165252183. The next prime is 2165252207. The reversal of 2165252203 is 3022525612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2165252203 - 2²¹ = 2163155051 is a prime.

It is not a weakly prime, because it can be changed into another prime (2165252207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082626101 + 1082626102.

It is an arithmetic number, because the mean of its divisors is an integer number (1082626102).

Almost surely, 2^2165252203 is an apocalyptic number.

2165252203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2165252203 is an equidigital number, since it uses as much as digits as its factorization.

2165252203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2165252203 is about 46532.2705549600. The cubic root of 2165252203 is about 1293.7077000554.

Adding to 2165252203 its reverse (3022525612), we get a palindrome (5187777815).

The spelling of 2165252203 in words is "two billion, one hundred sixty-five million, two hundred fifty-two thousand, two hundred three".