208226725 has 30 divisors (see below), whose sum is σ = 301303570. Its totient is φ = 142742880.

The previous prime is 208226701. The next prime is 208226729. The reversal of 208226725 is 527622802.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 693889 + 207532836 = 833^2 + 14406^2 .

It is not a de Polignac number, because 208226725 - 2²³ = 199838117 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208226729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 58291 + ... + 61759.

Almost surely, 2^208226725 is an apocalyptic number.

208226725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

208226725 is a deficient number, since it is larger than the sum of its proper divisors (93076845).

208226725 is an frugal number, since it uses more digits than its factorization.

208226725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507 (or 3481 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 208226725 is about 14430.0632361747. The cubic root of 208226725 is about 592.7144149708.

The spelling of 208226725 in words is "two hundred eight million, two hundred twenty-six thousand, seven hundred twenty-five".