16225571 has 2 divisors, whose sum is σ = 16225572. Its totient is φ = 16225570.

The previous prime is 16225543. The next prime is 16225589. The reversal of 16225571 is 17552261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16225571 - 2⁶ = 16225507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16225171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8112785 + 8112786.

It is an arithmetic number, because the mean of its divisors is an integer number (8112786).

Almost surely, 2^16225571 is an apocalyptic number.

16225571 is a deficient number, since it is larger than the sum of its proper divisors (1).

16225571 is an equidigital number, since it uses as much as digits as its factorization.

16225571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 29.

The square root of 16225571 is about 4028.0976899772. The cubic root of 16225571 is about 253.1628618058.

The spelling of 16225571 in words is "sixteen million, two hundred twenty-five thousand, five hundred seventy-one".