208531053 has 12 divisors (see below), whose sum is σ = 302541408. Its totient is φ = 138406920.

The previous prime is 208531049. The next prime is 208531067. The reversal of 208531053 is 350135802.

It is not a de Polignac number, because 208531053 - 2² = 208531049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208531073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48993 + ... + 53078.

It is an arithmetic number, because the mean of its divisors is an integer number (25211784).

Almost surely, 2^208531053 is an apocalyptic number.

It is an amenable number.

208531053 is a deficient number, since it is larger than the sum of its proper divisors (94010355).

208531053 is a wasteful number, since it uses less digits than its factorization.

208531053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102304 (or 102301 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 208531053 is about 14440.6043156095. The cubic root of 208531053 is about 593.0030295206.

Adding to 208531053 its reverse (350135802), we get a palindrome (558666855).

The spelling of 208531053 in words is "two hundred eight million, five hundred thirty-one thousand, fifty-three".