16617425 has 12 divisors (see below), whose sum is σ = 22479216. Its totient is φ = 12085200.

The previous prime is 16617401. The next prime is 16617427. The reversal of 16617425 is 52471661.

It is not a de Polignac number, because 16617425 - 2¹⁶ = 16551889 is a prime.

It is a super-2 number, since 2×16617425² = 552277627261250, 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 = 16617391 and 16617400.

It is not an unprimeable number, because it can be changed into a prime (16617427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29939 + ... + 30488.

It is an arithmetic number, because the mean of its divisors is an integer number (1873268).

Almost surely, 2^16617425 is an apocalyptic number.

It is an amenable number.

16617425 is a deficient number, since it is larger than the sum of its proper divisors (5861791).

16617425 is a wasteful number, since it uses less digits than its factorization.

16617425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60448 (or 60443 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 16617425 is about 4076.4475956401. The cubic root of 16617425 is about 255.1846669525.

The spelling of 16617425 in words is "sixteen million, six hundred seventeen thousand, four hundred twenty-five".