208188056 has 16 divisors (see below), whose sum is σ = 392075640. Its totient is φ = 103634560.

The previous prime is 208188047. The next prime is 208188067. The reversal of 208188056 is 650881802.

It is a super-2 number, since 2×208188056² = 86684533322118272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55505 + ... + 59136.

Almost surely, 2^208188056 is an apocalyptic number.

It is an amenable number.

208188056 is a deficient number, since it is larger than the sum of its proper divisors (183887584).

208188056 is a wasteful number, since it uses less digits than its factorization.

208188056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114874 (or 114870 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 208188056 is about 14428.7232976449. The cubic root of 208188056 is about 592.6777224463.

The spelling of 208188056 in words is "two hundred eight million, one hundred eighty-eight thousand, fifty-six".