16625975 has 6 divisors (see below), whose sum is σ = 20616240. Its totient is φ = 13300760.

The previous prime is 16625971. The next prime is 16626031. The reversal of 16625975 is 57952661.

It is not a de Polignac number, because 16625975 - 2² = 16625971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16625971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 332495 + ... + 332544.

It is an arithmetic number, because the mean of its divisors is an integer number (3436040).

Almost surely, 2^16625975 is an apocalyptic number.

16625975 is a deficient number, since it is larger than the sum of its proper divisors (3990265).

16625975 is an equidigital number, since it uses as much as digits as its factorization.

16625975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665049 (or 665044 counting only the distinct ones).

The product of its digits is 113400, while the sum is 41.

The square root of 16625975 is about 4077.4961679933. The cubic root of 16625975 is about 255.2284253329.

The spelling of 16625975 in words is "sixteen million, six hundred twenty-five thousand, nine hundred seventy-five".