16047725 has 6 divisors (see below), whose sum is σ = 19899210. Its totient is φ = 12838160.

The previous prime is 16047673. The next prime is 16047763. The reversal of 16047725 is 52774061.

It can be written as a sum of positive squares in 3 ways, for example, as 23716 + 16024009 = 154^2 + 4003^2 .

It is not a de Polignac number, because 16047725 - 2¹⁴ = 16031341 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16047691 and 16047700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320930 + ... + 320979.

It is an arithmetic number, because the mean of its divisors is an integer number (3316535).

Almost surely, 2^16047725 is an apocalyptic number.

It is an amenable number.

16047725 is a deficient number, since it is larger than the sum of its proper divisors (3851485).

16047725 is an equidigital number, since it uses as much as digits as its factorization.

16047725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641919 (or 641914 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 16047725 is about 4005.9611830371. The cubic root of 16047725 is about 252.2345018362.

The spelling of 16047725 in words is "sixteen million, forty-seven thousand, seven hundred twenty-five".