16625135 has 4 divisors (see below), whose sum is σ = 19950168. Its totient is φ = 13300104.

The previous prime is 16625071. The next prime is 16625143. The reversal of 16625135 is 53152661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16625135 - 2⁶ = 16625071 is a prime.

It is a super-2 number, since 2×16625135² = 552790227536450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16625098 and 16625107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662509 + ... + 1662518.

It is an arithmetic number, because the mean of its divisors is an integer number (4987542).

Almost surely, 2^16625135 is an apocalyptic number.

16625135 is a deficient number, since it is larger than the sum of its proper divisors (3325033).

16625135 is an equidigital number, since it uses as much as digits as its factorization.

16625135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325032.

The product of its digits is 5400, while the sum is 29.

The square root of 16625135 is about 4077.3931623036. The cubic root of 16625135 is about 255.2241269286.

Adding to 16625135 its reverse (53152661), we get a palindrome (69777796).

The spelling of 16625135 in words is "sixteen million, six hundred twenty-five thousand, one hundred thirty-five".