208025801 has 4 divisors (see below), whose sum is σ = 208280004. Its totient is φ = 207771600.

The previous prime is 208025791. The next prime is 208025809. The reversal of 208025801 is 108520802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52998400 + 155027401 = 7280^2 + 12451^2 .

It is a cyclic number.

It is not a de Polignac number, because 208025801 - 2¹⁰ = 208024777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208025809) 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 3 ways as a sum of consecutive naturals, for example, 125870 + ... + 127511.

It is an arithmetic number, because the mean of its divisors is an integer number (52070001).

Almost surely, 2^208025801 is an apocalyptic number.

It is an amenable number.

208025801 is a deficient number, since it is larger than the sum of its proper divisors (254203).

208025801 is an equidigital number, since it uses as much as digits as its factorization.

208025801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254202.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 208025801 is about 14423.0995628540. The cubic root of 208025801 is about 592.5237111817.

The spelling of 208025801 in words is "two hundred eight million, twenty-five thousand, eight hundred one".