11322551 has 2 divisors, whose sum is σ = 11322552. Its totient is φ = 11322550.

The previous prime is 11322539. The next prime is 11322559. The reversal of 11322551 is 15522311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11322551 - 2¹⁸ = 11060407 is a prime.

It is a super-2 number, since 2×11322551² = 256400322295202, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11322559) 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, 5661275 + 5661276.

It is an arithmetic number, because the mean of its divisors is an integer number (5661276).

Almost surely, 2^11322551 is an apocalyptic number.

11322551 is a deficient number, since it is larger than the sum of its proper divisors (1).

11322551 is an equidigital number, since it uses as much as digits as its factorization.

11322551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 20.

The square root of 11322551 is about 3364.8998499212. The cubic root of 11322551 is about 224.5508802457.

Adding to 11322551 its reverse (15522311), we get a palindrome (26844862).

The spelling of 11322551 in words is "eleven million, three hundred twenty-two thousand, five hundred fifty-one".