13222553 has 2 divisors, whose sum is σ = 13222554. Its totient is φ = 13222552.

The previous prime is 13222511. The next prime is 13222571. The reversal of 13222553 is 35522231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11751184 + 1471369 = 3428^2 + 1213^2 .

It is a cyclic number.

It is not a de Polignac number, because 13222553 - 2¹⁶ = 13157017 is a prime.

It is not a weakly prime, because it can be changed into another prime (13222453) 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, 6611276 + 6611277.

It is an arithmetic number, because the mean of its divisors is an integer number (6611277).

Almost surely, 2^13222553 is an apocalyptic number.

It is an amenable number.

13222553 is a deficient number, since it is larger than the sum of its proper divisors (1).

13222553 is an equidigital number, since it uses as much as digits as its factorization.

13222553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 23.

The square root of 13222553 is about 3636.2828547845. The cubic root of 13222553 is about 236.4676700141.

Adding to 13222553 its reverse (35522231), we get a palindrome (48744784).

The spelling of 13222553 in words is "thirteen million, two hundred twenty-two thousand, five hundred fifty-three".