208369225 has 9 divisors (see below), whose sum is σ = 258467367. Its totient is φ = 166637640.

The previous prime is 208369223. The next prime is 208369241. The reversal of 208369225 is 522963802.

The square root of 208369225 is 14435.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 75012921 + 133356304 = 8661^2 + 11548^2 .

It is not a de Polignac number, because 208369225 - 2¹ = 208369223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208369223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 70732 + ... + 73618.

Almost surely, 2^208369225 is an apocalyptic number.

208369225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

208369225 is the 14435-th square number.

208369225 is the 7218-th centered octagonal number.

It is an amenable number.

208369225 is a deficient number, since it is larger than the sum of its proper divisors (50098142).

208369225 is an frugal number, since it uses more digits than its factorization.

208369225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784 (or 2892 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The cubic root of 208369225 is about 592.8495922146.

The spelling of 208369225 in words is "two hundred eight million, three hundred sixty-nine thousand, two hundred twenty-five".