16552117 has 2 divisors, whose sum is σ = 16552118. Its totient is φ = 16552116.

The previous prime is 16552091. The next prime is 16552147. The reversal of 16552117 is 71125561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8520561 + 8031556 = 2919^2 + 2834^2 .

It is a cyclic number.

It is not a de Polignac number, because 16552117 - 2⁷ = 16551989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16552147) 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, 8276058 + 8276059.

It is an arithmetic number, because the mean of its divisors is an integer number (8276059).

Almost surely, 2^16552117 is an apocalyptic number.

It is an amenable number.

16552117 is a deficient number, since it is larger than the sum of its proper divisors (1).

16552117 is an equidigital number, since it uses as much as digits as its factorization.

16552117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 28.

The square root of 16552117 is about 4068.4293037977. The cubic root of 16552117 is about 254.8499283580.

Adding to 16552117 its reverse (71125561), we get a palindrome (87677678).

The spelling of 16552117 in words is "sixteen million, five hundred fifty-two thousand, one hundred seventeen".