16478625 has 16 divisors (see below), whose sum is σ = 27421056. Its totient is φ = 8788400.

The previous prime is 16478599. The next prime is 16478659. The reversal of 16478625 is 52687461.

It is not a de Polignac number, because 16478625 - 2⁸ = 16478369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21597 + ... + 22346.

It is an arithmetic number, because the mean of its divisors is an integer number (1713816).

Almost surely, 2^16478625 is an apocalyptic number.

16478625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16478625 is a deficient number, since it is larger than the sum of its proper divisors (10942431).

16478625 is an equidigital number, since it uses as much as digits as its factorization.

16478625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43961 (or 43951 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 16478625 is about 4059.3872690346. The cubic root of 16478625 is about 254.4721877685.

The spelling of 16478625 in words is "sixteen million, four hundred seventy-eight thousand, six hundred twenty-five".