208553047 has 2 divisors, whose sum is σ = 208553048. Its totient is φ = 208553046.

The previous prime is 208553017. The next prime is 208553069. The reversal of 208553047 is 740355802.

It is a happy number.

208553047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208553047 - 2²⁷ = 74335319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208553017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104276523 + 104276524.

It is an arithmetic number, because the mean of its divisors is an integer number (104276524).

Almost surely, 2^208553047 is an apocalyptic number.

208553047 is a deficient number, since it is larger than the sum of its proper divisors (1).

208553047 is an equidigital number, since it uses as much as digits as its factorization.

208553047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 208553047 is about 14441.3658287573. The cubic root of 208553047 is about 593.0238770154.

The spelling of 208553047 in words is "two hundred eight million, five hundred fifty-three thousand, forty-seven".