16254225 has 36 divisors (see below), whose sum is σ = 31358236. Its totient is φ = 8000640.

The previous prime is 16254209. The next prime is 16254229. The reversal of 16254225 is 52245261.

It can be written as a sum of positive squares in 6 ways, for example, as 69696 + 16184529 = 264^2 + 4023^2 .

It is not a de Polignac number, because 16254225 - 2⁴ = 16254209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16254229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 147 + ... + 5703.

Almost surely, 2^16254225 is an apocalyptic number.

16254225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16254225 is a deficient number, since it is larger than the sum of its proper divisors (15104011).

16254225 is a wasteful number, since it uses less digits than its factorization.

16254225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5586 (or 5578 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 16254225 is about 4031.6528868443. The cubic root of 16254225 is about 253.3118008399.

Adding to 16254225 its reverse (52245261), we get a palindrome (68499486).

The spelling of 16254225 in words is "sixteen million, two hundred fifty-four thousand, two hundred twenty-five".