16530653 has 2 divisors, whose sum is σ = 16530654. Its totient is φ = 16530652.

The previous prime is 16530623. The next prime is 16530659. The reversal of 16530653 is 35603561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14462809 + 2067844 = 3803^2 + 1438^2 .

It is a cyclic number.

It is not a de Polignac number, because 16530653 - 2¹² = 16526557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16530659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8265326 + 8265327.

It is an arithmetic number, because the mean of its divisors is an integer number (8265327).

Almost surely, 2^16530653 is an apocalyptic number.

It is an amenable number.

16530653 is a deficient number, since it is larger than the sum of its proper divisors (1).

16530653 is an equidigital number, since it uses as much as digits as its factorization.

16530653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 16530653 is about 4065.7905750297. The cubic root of 16530653 is about 254.7397216088.

The spelling of 16530653 in words is "sixteen million, five hundred thirty thousand, six hundred fifty-three".