16493625 has 56 divisors (see below), whose sum is σ = 31032456. Its totient is φ = 8748000.

The previous prime is 16493623. The next prime is 16493641. The reversal of 16493625 is 52639461.

It is a happy number.

16493625 is a `hidden beast` number, since 1 + 649 + 3 + 6 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4549689 + 11943936 = 2133^2 + 3456^2 .

It is not a de Polignac number, because 16493625 - 2¹ = 16493623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16493625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16493623) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 91035 + ... + 91215.

It is an arithmetic number, because the mean of its divisors is an integer number (554151).

Almost surely, 2^16493625 is an apocalyptic number.

16493625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16493625 is a deficient number, since it is larger than the sum of its proper divisors (14538831).

16493625 is an frugal number, since it uses more digits than its factorization.

16493625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 189 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 16493625 is about 4061.2344182527. The cubic root of 16493625 is about 254.5493771620.

The spelling of 16493625 in words is "sixteen million, four hundred ninety-three thousand, six hundred twenty-five".