2553209 has 2 divisors, whose sum is σ = 2553210. Its totient is φ = 2553208.

The previous prime is 2553203. The next prime is 2553217. The reversal of 2553209 is 9023552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2393209 + 160000 = 1547^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 2553209 - 2¹⁶ = 2487673 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (2553203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276604 + 1276605.

It is an arithmetic number, because the mean of its divisors is an integer number (1276605).

2^2553209 is an apocalyptic number.

It is an amenable number.

2553209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2553209 is an equidigital number, since it uses as much as digits as its factorization.

2553209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 2553209 is about 1597.8764032302. The cubic root of 2553209 is about 136.6770056294.

The spelling of 2553209 in words is "two million, five hundred fifty-three thousand, two hundred nine".