16386225 has 24 divisors (see below), whose sum is σ = 27727392. Its totient is φ = 8534400.

The previous prime is 16386217. The next prime is 16386233. The reversal of 16386225 is 52268361.

It is an interprime number because it is at equal distance from previous prime (16386217) and next prime (16386233).

It is not a de Polignac number, because 16386225 - 2³ = 16386217 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 685 + ... + 5765.

It is an arithmetic number, because the mean of its divisors is an integer number (1155308).

Almost surely, 2^16386225 is an apocalyptic number.

16386225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16386225 is a deficient number, since it is larger than the sum of its proper divisors (11341167).

16386225 is a wasteful number, since it uses less digits than its factorization.

16386225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5137 (or 5132 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 16386225 is about 4047.9902420831. The cubic root of 16386225 is about 253.9956650840.

The spelling of 16386225 in words is "sixteen million, three hundred eighty-six thousand, two hundred twenty-five".