11252809 has 2 divisors, whose sum is σ = 11252810. Its totient is φ = 11252808.

The previous prime is 11252797. The next prime is 11252821. The reversal of 11252809 is 90825211.

11252809 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (11252797) and next prime (11252821).

It can be written as a sum of positive squares in only one way, i.e., 6390784 + 4862025 = 2528^2 + 2205^2 .

It is an emirp because it is prime and its reverse (90825211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11252809 - 2¹¹ = 11250761 is a prime.

It is a super-3 number, since 3×11252809³ (a number of 22 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11252849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5626404 + 5626405.

It is an arithmetic number, because the mean of its divisors is an integer number (5626405).

Almost surely, 2^11252809 is an apocalyptic number.

It is an amenable number.

11252809 is a deficient number, since it is larger than the sum of its proper divisors (1).

11252809 is an equidigital number, since it uses as much as digits as its factorization.

11252809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 11252809 is about 3354.5206811108. The cubic root of 11252809 is about 224.0888850588.

The spelling of 11252809 in words is "eleven million, two hundred fifty-two thousand, eight hundred nine".