16625233 has 2 divisors, whose sum is σ = 16625234. Its totient is φ = 16625232.

The previous prime is 16625153. The next prime is 16625237. The reversal of 16625233 is 33252661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10188864 + 6436369 = 3192^2 + 2537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16625233 is a prime.

It is not a weakly prime, because it can be changed into another prime (16625237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8312616 + 8312617.

It is an arithmetic number, because the mean of its divisors is an integer number (8312617).

Almost surely, 2^16625233 is an apocalyptic number.

It is an amenable number.

16625233 is a deficient number, since it is larger than the sum of its proper divisors (1).

16625233 is an equidigital number, since it uses as much as digits as its factorization.

16625233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 16625233 is about 4077.4051797681. The cubic root of 16625233 is about 255.2246284165.

Adding to 16625233 its reverse (33252661), we get a palindrome (49877894).

The spelling of 16625233 in words is "sixteen million, six hundred twenty-five thousand, two hundred thirty-three".