16320253 has 2 divisors, whose sum is σ = 16320254. Its totient is φ = 16320252.

The previous prime is 16320223. The next prime is 16320257. The reversal of 16320253 is 35202361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10381284 + 5938969 = 3222^2 + 2437^2 .

It is an emirp because it is prime and its reverse (35202361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16320253 - 2¹⁷ = 16189181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16320257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8160126 + 8160127.

It is an arithmetic number, because the mean of its divisors is an integer number (8160127).

Almost surely, 2^16320253 is an apocalyptic number.

It is an amenable number.

16320253 is a deficient number, since it is larger than the sum of its proper divisors (1).

16320253 is an equidigital number, since it uses as much as digits as its factorization.

16320253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 16320253 is about 4039.8332886395. The cubic root of 16320253 is about 253.6543389565.

The spelling of 16320253 in words is "sixteen million, three hundred twenty thousand, two hundred fifty-three".