16613625 has 32 divisors (see below), whose sum is σ = 31599360. Its totient is φ = 7593600.

The previous prime is 16613617. The next prime is 16613647. The reversal of 16613625 is 52631661.

It is not a de Polignac number, because 16613625 - 2³ = 16613617 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16613592 and 16613601.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 540 + ... + 5789.

It is an arithmetic number, because the mean of its divisors is an integer number (987480).

Almost surely, 2^16613625 is an apocalyptic number.

16613625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16613625 is a deficient number, since it is larger than the sum of its proper divisors (14985735).

16613625 is an equidigital number, since it uses as much as digits as its factorization.

16613625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6354 (or 6344 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 16613625 is about 4075.9814768961. The cubic root of 16613625 is about 255.1652139655.

The spelling of 16613625 in words is "sixteen million, six hundred thirteen thousand, six hundred twenty-five".