16478125 has 12 divisors (see below), whose sum is σ = 20600244. Its totient is φ = 13180000.

The previous prime is 16478101. The next prime is 16478129. The reversal of 16478125 is 52187461.

It can be written as a sum of positive squares in 6 ways, for example, as 13645636 + 2832489 = 3694^2 + 1683^2 .

It is not a de Polignac number, because 16478125 - 2⁵ = 16478093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16478129) 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, 489 + ... + 5761.

It is an arithmetic number, because the mean of its divisors is an integer number (1716687).

Almost surely, 2^16478125 is an apocalyptic number.

It is an amenable number.

16478125 is a deficient number, since it is larger than the sum of its proper divisors (4122119).

16478125 is an frugal number, since it uses more digits than its factorization.

16478125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298 (or 5278 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 16478125 is about 4059.3256829183. The cubic root of 16478125 is about 254.4696139821.

The spelling of 16478125 in words is "sixteen million, four hundred seventy-eight thousand, one hundred twenty-five".