16206825 has 12 divisors (see below), whose sum is σ = 26795408. Its totient is φ = 8643600.

The previous prime is 16206821. The next prime is 16206833. The reversal of 16206825 is 52860261.

It is not a de Polignac number, because 16206825 - 2² = 16206821 is a prime.

It is a super-2 number, since 2×16206825² = 525322353161250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16206792 and 16206801.

It is not an unprimeable number, because it can be changed into a prime (16206821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107971 + ... + 108120.

Almost surely, 2^16206825 is an apocalyptic number.

16206825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16206825 is a deficient number, since it is larger than the sum of its proper divisors (10588583).

16206825 is a wasteful number, since it uses less digits than its factorization.

16206825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216104 (or 216099 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 16206825 is about 4025.7701126617. The cubic root of 16206825 is about 253.0653281075.

The spelling of 16206825 in words is "sixteen million, two hundred six thousand, eight hundred twenty-five".