16225543 has 2 divisors, whose sum is σ = 16225544. Its totient is φ = 16225542.

The previous prime is 16225523. The next prime is 16225571. The reversal of 16225543 is 34552261.

It is an a-pointer prime, because the next prime (16225571) can be obtained adding 16225543 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16225543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16225523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8112771 + 8112772.

It is an arithmetic number, because the mean of its divisors is an integer number (8112772).

Almost surely, 2^16225543 is an apocalyptic number.

16225543 is a deficient number, since it is larger than the sum of its proper divisors (1).

16225543 is an equidigital number, since it uses as much as digits as its factorization.

16225543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 16225543 is about 4028.0942143897. The cubic root of 16225543 is about 253.1627161805.

The spelling of 16225543 in words is "sixteen million, two hundred twenty-five thousand, five hundred forty-three".