11325551 has 2 divisors, whose sum is σ = 11325552. Its totient is φ = 11325550.

The previous prime is 11325541. The next prime is 11325557. The reversal of 11325551 is 15552311.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (15552311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11325551 - 2⁶ = 11325487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11325557) 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, 5662775 + 5662776.

It is an arithmetic number, because the mean of its divisors is an integer number (5662776).

Almost surely, 2^11325551 is an apocalyptic number.

11325551 is a deficient number, since it is larger than the sum of its proper divisors (1).

11325551 is an equidigital number, since it uses as much as digits as its factorization.

11325551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 750, while the sum is 23.

The square root of 11325551 is about 3365.3455988947. The cubic root of 11325551 is about 224.5707106754.

Adding to 11325551 its reverse (15552311), we get a palindrome (26877862).

The spelling of 11325551 in words is "eleven million, three hundred twenty-five thousand, five hundred fifty-one".