16799725 has 12 divisors (see below), whose sum is σ = 20885940. Its totient is φ = 13404800.

The previous prime is 16799707. The next prime is 16799747. The reversal of 16799725 is 52799761.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 104329 + 16695396 = 323^2 + 4086^2 .

It is not a de Polignac number, because 16799725 - 2⁵ = 16799693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13635 + ... + 14815.

It is an arithmetic number, because the mean of its divisors is an integer number (1740495).

Almost surely, 2^16799725 is an apocalyptic number.

It is an amenable number.

16799725 is a deficient number, since it is larger than the sum of its proper divisors (4086215).

16799725 is a wasteful number, since it uses less digits than its factorization.

16799725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760 (or 1755 counting only the distinct ones).

The product of its digits is 238140, while the sum is 46.

The square root of 16799725 is about 4098.7467596815. The cubic root of 16799725 is about 256.1144355325.

The spelling of 16799725 in words is "sixteen million, seven hundred ninety-nine thousand, seven hundred twenty-five".