16504725 has 12 divisors (see below), whose sum is σ = 27287936. Its totient is φ = 8802480.

The previous prime is 16504723. The next prime is 16504729. The reversal of 16504725 is 52740561.

It is not a de Polignac number, because 16504725 - 2¹ = 16504723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16504692 and 16504701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16504723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109957 + ... + 110106.

Almost surely, 2^16504725 is an apocalyptic number.

16504725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16504725 is a deficient number, since it is larger than the sum of its proper divisors (10783211).

16504725 is a wasteful number, since it uses less digits than its factorization.

16504725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220076 (or 220071 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 16504725 is about 4062.6007679810. The cubic root of 16504725 is about 254.6064671889.

The spelling of 16504725 in words is "sixteen million, five hundred four thousand, seven hundred twenty-five".