16525433 has 2 divisors, whose sum is σ = 16525434. Its totient is φ = 16525432.

The previous prime is 16525409. The next prime is 16525451. The reversal of 16525433 is 33452561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16386304 + 139129 = 4048^2 + 373^2 .

It is an emirp because it is prime and its reverse (33452561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16525433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16525396 and 16525405.

It is not a weakly prime, because it can be changed into another prime (16525403) 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, 8262716 + 8262717.

It is an arithmetic number, because the mean of its divisors is an integer number (8262717).

Almost surely, 2^16525433 is an apocalyptic number.

It is an amenable number.

16525433 is a deficient number, since it is larger than the sum of its proper divisors (1).

16525433 is an equidigital number, since it uses as much as digits as its factorization.

16525433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 29.

The square root of 16525433 is about 4065.1485827704. The cubic root of 16525433 is about 254.7129051376.

Adding to 16525433 its reverse (33452561), we get a palindrome (49977994).

The spelling of 16525433 in words is "sixteen million, five hundred twenty-five thousand, four hundred thirty-three".