16320725 has 12 divisors (see below), whose sum is σ = 20891520. Its totient is φ = 12634800.

The previous prime is 16320721. The next prime is 16320727. The reversal of 16320725 is 52702361.

16320725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16320725 - 2² = 16320721 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16320694 and 16320703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16320721) 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, 9755 + ... + 11304.

It is an arithmetic number, because the mean of its divisors is an integer number (1740960).

Almost surely, 2^16320725 is an apocalyptic number.

It is an amenable number.

16320725 is a deficient number, since it is larger than the sum of its proper divisors (4570795).

16320725 is a wasteful number, since it uses less digits than its factorization.

16320725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21100 (or 21095 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 16320725 is about 4039.8917064694. The cubic root of 16320725 is about 253.6567842555.

The spelling of 16320725 in words is "sixteen million, three hundred twenty thousand, seven hundred twenty-five".