208481725 has 24 divisors (see below), whose sum is σ = 268677000. Its totient is φ = 160285440.

The previous prime is 208481687. The next prime is 208481731. The reversal of 208481725 is 527184802.

It can be written as a sum of positive squares in 12 ways, for example, as 107619876 + 100861849 = 10374^2 + 10043^2 .

It is not a de Polignac number, because 208481725 - 2¹⁹ = 207957437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194491 + ... + 195559.

It is an arithmetic number, because the mean of its divisors is an integer number (11194875).

Almost surely, 2^208481725 is an apocalyptic number.

208481725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

208481725 is a deficient number, since it is larger than the sum of its proper divisors (60195275).

208481725 is a wasteful number, since it uses less digits than its factorization.

208481725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 208481725 is about 14438.8962528304. The cubic root of 208481725 is about 592.9562675639.

The spelling of 208481725 in words is "two hundred eight million, four hundred eighty-one thousand, seven hundred twenty-five".