11553257 has 2 divisors, whose sum is σ = 11553258. Its totient is φ = 11553256.

The previous prime is 11553247. The next prime is 11553259. The reversal of 11553257 is 75235511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11262736 + 290521 = 3356^2 + 539^2 .

It is a cyclic number.

It is not a de Polignac number, because 11553257 - 2⁶ = 11553193 is a prime.

Together with 11553259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11553259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776628 + 5776629.

It is an arithmetic number, because the mean of its divisors is an integer number (5776629).

Almost surely, 2^11553257 is an apocalyptic number.

It is an amenable number.

11553257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11553257 is an equidigital number, since it uses as much as digits as its factorization.

11553257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5250, while the sum is 29.

The square root of 11553257 is about 3399.0082377070. The cubic root of 11553257 is about 226.0657717045.

Adding to 11553257 its reverse (75235511), we get a palindrome (86788768).

The spelling of 11553257 in words is "eleven million, five hundred fifty-three thousand, two hundred fifty-seven".