16225507 has 2 divisors, whose sum is σ = 16225508. Its totient is φ = 16225506.

The previous prime is 16225483. The next prime is 16225519. The reversal of 16225507 is 70552261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16225507 - 2¹⁵ = 16192739 is a prime.

It is not a weakly prime, because it can be changed into another prime (16225597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8112753 + 8112754.

It is an arithmetic number, because the mean of its divisors is an integer number (8112754).

Almost surely, 2^16225507 is an apocalyptic number.

16225507 is a deficient number, since it is larger than the sum of its proper divisors (1).

16225507 is an equidigital number, since it uses as much as digits as its factorization.

16225507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 16225507 is about 4028.0897457728. The cubic root of 16225507 is about 253.1625289476.

Adding to 16225507 its reverse (70552261), we get a palindrome (86777768).

The spelling of 16225507 in words is "sixteen million, two hundred twenty-five thousand, five hundred seven".