16225427 has 2 divisors, whose sum is σ = 16225428. Its totient is φ = 16225426.

The previous prime is 16225409. The next prime is 16225441. The reversal of 16225427 is 72452261.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16225427 - 2⁸ = 16225171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16225427.

It is not a weakly prime, because it can be changed into another prime (16225477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8112713 + 8112714.

It is an arithmetic number, because the mean of its divisors is an integer number (8112714).

Almost surely, 2^16225427 is an apocalyptic number.

16225427 is a deficient number, since it is larger than the sum of its proper divisors (1).

16225427 is an equidigital number, since it uses as much as digits as its factorization.

16225427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 29.

The square root of 16225427 is about 4028.0798154952. The cubic root of 16225427 is about 253.1621128736.

Adding to 16225427 its reverse (72452261), we get a palindrome (88677688).

The spelling of 16225427 in words is "sixteen million, two hundred twenty-five thousand, four hundred twenty-seven".