208475057 has 16 divisors (see below), whose sum is σ = 249705600. Its totient is φ = 173852784.

The previous prime is 208475021. The next prime is 208475081. The reversal of 208475057 is 750574802.

208475057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 208475057 - 2¹⁴ = 208458673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208475057.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208475017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4478 + ... + 20904.

It is an arithmetic number, because the mean of its divisors is an integer number (15606600).

Almost surely, 2^208475057 is an apocalyptic number.

It is an amenable number.

208475057 is a deficient number, since it is larger than the sum of its proper divisors (41230543).

208475057 is an equidigital number, since it uses as much as digits as its factorization.

208475057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16485 (or 16471 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 208475057 is about 14438.6653469079. The cubic root of 208475057 is about 592.9499458674.

The spelling of 208475057 in words is "two hundred eight million, four hundred seventy-five thousand, fifty-seven".