11522257 has 2 divisors, whose sum is σ = 11522258. Its totient is φ = 11522256.

The previous prime is 11522249. The next prime is 11522263. The reversal of 11522257 is 75222511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10265616 + 1256641 = 3204^2 + 1121^2 .

It is a cyclic number.

It is not a de Polignac number, because 11522257 - 2³ = 11522249 is a prime.

It is not a weakly prime, because it can be changed into another prime (11522557) 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, 5761128 + 5761129.

It is an arithmetic number, because the mean of its divisors is an integer number (5761129).

Almost surely, 2^11522257 is an apocalyptic number.

It is an amenable number.

11522257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11522257 is an equidigital number, since it uses as much as digits as its factorization.

11522257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1400, while the sum is 25.

The square root of 11522257 is about 3394.4450209128. The cubic root of 11522257 is about 225.8633954011.

Adding to 11522257 its reverse (75222511), we get a palindrome (86744768).

The spelling of 11522257 in words is "eleven million, five hundred twenty-two thousand, two hundred fifty-seven".