11503253 has 2 divisors, whose sum is σ = 11503254. Its totient is φ = 11503252.

The previous prime is 11503213. The next prime is 11503259. The reversal of 11503253 is 35230511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11444689 + 58564 = 3383^2 + 242^2 .

It is a cyclic number.

It is not a de Polignac number, because 11503253 - 2¹⁰ = 11502229 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11503259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5751626 + 5751627.

It is an arithmetic number, because the mean of its divisors is an integer number (5751627).

Almost surely, 2^11503253 is an apocalyptic number.

It is an amenable number.

11503253 is a deficient number, since it is larger than the sum of its proper divisors (1).

11503253 is an equidigital number, since it uses as much as digits as its factorization.

11503253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 11503253 is about 3391.6445863327. The cubic root of 11503253 is about 225.7391526727.

Adding to 11503253 its reverse (35230511), we get a palindrome (46733764).

The spelling of 11503253 in words is "eleven million, five hundred three thousand, two hundred fifty-three".