2565203 has 2 divisors, whose sum is σ = 2565204. Its totient is φ = 2565202.

The previous prime is 2565191. The next prime is 2565221. The reversal of 2565203 is 3025652.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2565203 - 2⁶ = 2565139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2565263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282601 + 1282602.

It is an arithmetic number, because the mean of its divisors is an integer number (1282602).

2^2565203 is an apocalyptic number.

2565203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565203 is an equidigital number, since it uses as much as digits as its factorization.

2565203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2565203 is about 1601.6251121907. The cubic root of 2565203 is about 136.8906901524.

The spelling of 2565203 in words is "two million, five hundred sixty-five thousand, two hundred three".