16205025 has 24 divisors (see below), whose sum is σ = 26908000. Its totient is φ = 8605440.

The previous prime is 16205009. The next prime is 16205027. The reversal of 16205025 is 52050261.

It is not a de Polignac number, because 16205025 - 2⁴ = 16205009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16204992 and 16205010.

It is not an unprimeable number, because it can be changed into a prime (16205027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32226 + ... + 32724.

Almost surely, 2^16205025 is an apocalyptic number.

16205025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16205025 is a deficient number, since it is larger than the sum of its proper divisors (10702975).

16205025 is a wasteful number, since it uses less digits than its factorization.

16205025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 16205025 is about 4025.5465467437. The cubic root of 16205025 is about 253.0559589177.

Adding to 16205025 its reverse (52050261), we get a palindrome (68255286).

It can be divided in two parts, 1 and 6205025, that added together give a palindrome (6205026).

The spelling of 16205025 in words is "sixteen million, two hundred five thousand, twenty-five".